219 changed files with 6048 additions and 2287 deletions
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@ -1,16 +1,16 @@
-image: romanov73/is:ng-tracker-container-11
+image: romanov73/is:ng-tracker-container

 variables:
  GRADLE_OPTS: "-Dorg.gradle.daemon=false"

 before_script:
-  - service postgresql stop
-  - service postgresql start
-  - eval $(ssh-agent -s)
-  - echo "$SSH_PRIVATE_KEY" | tr -d '\r' | ssh-add - > /dev/null
-  - mkdir -p ~/.ssh
-  - chmod 700 ~/.ssh
-  - git log --pretty="%cn;%cd;%s" > src/main/resources/commits.log
+    - service postgresql stop
+    - service postgresql start
+    - eval $(ssh-agent -s)
+    - echo "$SSH_PRIVATE_KEY" | tr -d '\r' | ssh-add - > /dev/null
+    - mkdir -p ~/.ssh
+    - chmod 700 ~/.ssh
+    - git log --pretty="%cn;%cd;%s" > src/main/resources/commits.log

 build:
  stage: build
--- a/19
+++ b/19
@ -1,19 +0,0 @@
-pipeline {
-    agent any
-    stages {
-        stage('Test') {
-            steps {
-                sh "./gradlew clean test --info"
-            }
-        }
-    }
-    post {
-        always {
-            script {
-                if (currentBuild.currentResult == 'FAILURE') {
-                    step([$class: 'Mailer', notifyEveryUnstableBuild: true, recipients: "a.romanov@ulstu.ru", sendToIndividuals: true])
-                }
-            }
-        }
-    }
-}
--- a/README.md
+++ b/README.md
@ -9,4 +9,6 @@
 4. Получить проект для обучения бакалавров современым технологиям разработки.
 5. Создать систему хранения и трансляции опыта между участниками научной группы.

-[Для разворачивания проекта и ведения разработки ознакомьтесь с wiki](https://git.athene.tech/romanov73/ng-tracker/wiki/home)
+[Демо версия доступна здесь](http://193.110.3.124:8080)
+
+[Для разворачивания проекта и ведения разработки ознакомьтесь с wiki](https://gitlab.com/romanov73/ng-tracker/wikis/home)
--- a/build.gradle
+++ b/build.gradle
@ -1,19 +1,34 @@
-plugins {
-    id 'java'
-    id 'org.springframework.boot' version '3.2.4'
-    id 'io.spring.dependency-management' version '1.1.4'
-    id 'checkstyle'
+buildscript {
+    ext {
+        versionSpringBoot = '1.5.10.RELEASE'
+    }
+
+    repositories {
+        mavenLocal()
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath group: 'org.springframework.boot', name: 'spring-boot-gradle-plugin', version: versionSpringBoot
+    }
 }

 group 'ru.ulstu'
 version '0.1.0-SNAPSHOT'

+apply plugin: 'application'
+apply plugin: 'java'
+apply plugin: 'org.springframework.boot'
+apply plugin: 'io.spring.dependency-management'
+apply plugin: 'checkstyle'
+
+mainClassName = 'ru.ulstu.NgTrackerApplication'
+
 build.dependsOn checkstyleMain
 bootRun.dependsOn checkstyleMain

-java {
-    sourceCompatibility = '17'
-}
+sourceCompatibility = 1.8
+targetCompatibility = 1.8

 bootRun {
    systemProperties = System.properties
@ -49,7 +64,7 @@ checkstyle {
        checkstyle
    }

-    dependencies {
+    dependencies{
        assert project.hasProperty("checkstyleVersion")

        checkstyle "com.puppycrawl.tools:checkstyle:${checkstyleVersion}"
@ -61,16 +76,9 @@ task health(dependsOn: [
        'checkstyleMain'
 ])

-test {
-    useJUnitPlatform()
-}

 jar {
-    enabled = false
-}
-
-bootJar {
-    archiveFileName = String.format('%s-%s.jar', rootProject.name, version)
+    baseName = 'ng-tracker'
 }

 compileJava {
@ -82,39 +90,45 @@ repositories {
    mavenCentral()
 }

-dependencies {
-    implementation('org.springframework.boot:spring-boot-starter-web') {
-        exclude group: 'org.springframework.boot', module: 'spring-boot-starter-tomcat'
-    }
-    implementation group: 'org.springframework.boot', name: 'spring-boot-starter-security'
-    implementation group: 'org.springframework.boot', name: 'spring-boot-starter-aop'
-    implementation group: 'org.springframework.boot', name: 'spring-boot-starter-mail'
-    implementation group: 'org.springframework.boot', name: 'spring-boot-starter-jetty'
-    implementation group: 'org.springframework.boot', name: 'spring-boot-starter-data-jpa'
-    implementation group: 'org.springframework.boot', name: 'spring-boot-starter-thymeleaf'
-    implementation group: 'org.springframework.boot', name: 'spring-boot-starter-validation'
-    implementation group: 'nz.net.ultraq.thymeleaf', name: 'thymeleaf-layout-dialect'
-    implementation group: 'org.thymeleaf.extras', name: 'thymeleaf-extras-springsecurity6'
-    implementation group: 'com.fasterxml.jackson.module', name: 'jackson-module-afterburner'
-    implementation group: 'com.fasterxml.jackson.datatype', name: 'jackson-datatype-hibernate5'
-
-    implementation group: 'org.postgresql', name: 'postgresql', version: '42.2.5'
-
-    implementation group: 'org.liquibase', name: 'liquibase-core', version: '4.27.0'
-    implementation group: 'com.mattbertolini', name: 'liquibase-slf4j', version: '2.0.0'
-
-    implementation group: 'org.apache.commons', name: 'commons-lang3', version: '3.7'
-
-    implementation group: 'org.webjars', name: 'bootstrap', version: '5.3.3'
-    runtimeOnly group: 'org.webjars', name: 'bootstrap-select', version: '1.4.2'
-    implementation group: 'org.webjars', name: 'jquery', version: '3.7.1'
-    implementation group: 'org.webjars', name: 'jquery-easing', version: '1.4.1'
-    implementation group: 'org.webjars', name: 'font-awesome', version: '4.7.0'
-
-    implementation group: 'org.springdoc', name: 'springdoc-openapi-ui', version: '1.8.0'
-    implementation group: 'net.sourceforge.htmlunit', name: 'htmlunit', version: '2.35.0'
-    implementation group: 'xalan', name: 'xalan', version: '2.7.2'
-
-    implementation group: 'org.springframework.boot', name: 'spring-boot-starter-test'
-    testImplementation group: 'org.junit.jupiter', name: 'junit-jupiter-api', version: '5.10.2'
+configurations {
+    compile.exclude module: "spring-boot-starter-tomcat"
+    compile.exclude module: "bcmail-jdk14"
+    compile.exclude module: "bcprov-jdk14"
+    compile.exclude module: "bctsp-jdk14"
+}
+
+dependencies {
+    compile group: 'org.springframework.boot', name: 'spring-boot-starter-web'
+    compile group: 'org.springframework.boot', name: 'spring-boot-starter-security'
+    compile group: 'org.springframework.boot', name: 'spring-boot-starter-aop'
+    compile group: 'org.springframework.boot', name: 'spring-boot-starter-mail'
+    compile group: 'org.springframework.boot', name: 'spring-boot-starter-jetty'
+    compile group: 'org.springframework.boot', name: 'spring-boot-starter-data-jpa'
+    compile group: 'org.springframework.boot', name: 'spring-boot-starter-thymeleaf'
+    compile group: 'org.thymeleaf.extras', name: 'thymeleaf-extras-springsecurity4'
+    compile group: 'com.fasterxml.jackson.module', name: 'jackson-module-afterburner'
+    compile group: 'com.fasterxml.jackson.datatype', name: 'jackson-datatype-hibernate5'
+
+    compile group: 'postgresql', name: 'postgresql', version: '9.1-901.jdbc4'
+
+    compile group: 'org.liquibase', name: 'liquibase-core', version: '3.5.3'
+    compile group: 'com.mattbertolini', name: 'liquibase-slf4j', version: '2.0.0'
+
+    compile group: 'org.apache.commons', name: 'commons-lang3', version: '3.7'
+
+    compile group: 'org.webjars', name: 'bootstrap', version: '4.1.0'
+    compile group: 'org.webjars', name: 'bootstrap-select', version: '1.13.3'
+    compile group: 'org.webjars', name: 'jquery', version: '3.3.1-1'
+    compile group: 'org.webjars.npm', name: 'jquery.easing', version: '1.4.1'
+    compile group: 'org.webjars', name: 'font-awesome', version: '4.7.0'
+
+    compile group: 'io.springfox', name: 'springfox-swagger2', version: '2.6.0'
+    compile group: 'io.springfox', name: 'springfox-swagger-ui', version: '2.6.0'
+    compile group: 'net.sourceforge.htmlunit', name: 'htmlunit', version: '2.35.0'
+
+    testCompile group: 'org.springframework.boot', name: 'spring-boot-starter-test'
+    compile group: 'org.seleniumhq.selenium', name: 'selenium-java', version: '3.3.1'
+    testCompile group: 'org.seleniumhq.selenium', name: 'selenium-support', version: '3.3.1'
+    testCompile group: 'com.google.guava', name: 'guava', version: '21.0'
+
 }
--- a/deploy/gdccloud/deploy.sh
+++ b/deploy/gdccloud/deploy.sh
@ -18,6 +18,6 @@ fi

 ssh $USERSERVER "cd /tmp && rm -rf $ARTIFACT_NAME*.jar && echo `date` 'killed' >> log_$ARTIFACT_NAME"
 scp build/libs/$ARTIFACT_NAME-0.1.0-SNAPSHOT.jar $USERSERVER:/tmp/$ARTIFACT_NAME-0.1.0-SNAPSHOT.jar
-ssh $USERSERVER -f "cd /tmp/ && /opt/jdk-11/bin/java -jar $ARTIFACT_NAME-0.1.0-SNAPSHOT.jar -Xms 512m -Xmx 1024m  --server.port=8080 --server.http.port=8443 --ng-tracker.base-url=http://193.110.3.124:8080 --ng-tracker.dev-mode=false  --ng-tracker.driver-path=/home/user >> /home/user/logfile_$ARTIFACT_NAME" &
+ssh $USERSERVER -f "cd /tmp/ && /opt/jdk1.8.0_192/bin/java -jar $ARTIFACT_NAME-0.1.0-SNAPSHOT.jar -Xms 512m -Xmx 1024m  --server.port=8443 --server.http.port=8080 --ng-tracker.base-url=http://193.110.3.124:8080 --ng-tracker.dev-mode=false  --ng-tracker.driver-path=/home/user >> /home/user/logfile_$ARTIFACT_NAME" &
 sleep 10
 echo "is deployed"
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@ -2,6 +2,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
-networkTimeout=10000
-validateDistributionUrl=true
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.5.1-bin.zip
--- a/src/main/java/ru/ulstu/commit/controller/CommitController.java
+++ b/src/main/java/ru/ulstu/commit/controller/CommitController.java
@ -4,17 +4,20 @@ import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
-import ru.ulstu.commit.model.CommitListDto;
-import ru.ulstu.commit.service.CommitService;
 import ru.ulstu.configuration.Constants;
 import ru.ulstu.core.model.response.PageableItems;
+import ru.ulstu.commit.model.CommitListDto;
+import ru.ulstu.commit.service.CommitService;
 import ru.ulstu.core.model.response.Response;
 import ru.ulstu.odin.controller.OdinController;
 import ru.ulstu.odin.model.OdinVoid;

+import static ru.ulstu.commit.controller.CommitController.URL;
+
@RestController
-@RequestMapping(Constants.API_1_0 + "commits")
+@RequestMapping(URL)
 public class CommitController extends OdinController<CommitListDto, OdinVoid> {
+    public static final String URL = Constants.API_1_0 + "commits";
    private final CommitService commitService;

    public CommitController(CommitService commitService) {
--- a/src/main/java/ru/ulstu/conference/controller/ConferenceController.java
+++ b/src/main/java/ru/ulstu/conference/controller/ConferenceController.java
@ -1,8 +1,6 @@
 package ru.ulstu.conference.controller;


-import io.swagger.v3.oas.annotations.Hidden;
-import jakarta.validation.Valid;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.ModelMap;
 import org.springframework.validation.Errors;
@ -16,7 +14,9 @@ import ru.ulstu.conference.model.ConferenceFilterDto;
 import ru.ulstu.conference.model.ConferenceUser;
 import ru.ulstu.conference.service.ConferenceService;
 import ru.ulstu.user.model.User;
+import springfox.documentation.annotations.ApiIgnore;

+import javax.validation.Valid;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Calendar;
@ -29,7 +29,7 @@ import static ru.ulstu.core.controller.Navigation.REDIRECT_TO;

@Controller()
@RequestMapping(value = "/conferences")
-@Hidden
+@ApiIgnore
 public class ConferenceController {

    private final ConferenceService conferenceService;
--- a/src/main/java/ru/ulstu/conference/model/Conference.java
+++ b/src/main/java/ru/ulstu/conference/model/Conference.java
@ -1,19 +1,8 @@
 package ru.ulstu.conference.model;

-import jakarta.persistence.CascadeType;
-import jakarta.persistence.Column;
-import jakarta.persistence.DiscriminatorValue;
-import jakarta.persistence.Entity;
-import jakarta.persistence.FetchType;
-import jakarta.persistence.JoinColumn;
-import jakarta.persistence.OneToMany;
-import jakarta.persistence.OrderBy;
-import jakarta.persistence.Table;
-import jakarta.persistence.Temporal;
-import jakarta.persistence.TemporalType;
-import jakarta.validation.constraints.NotBlank;
 import org.hibernate.annotations.Fetch;
 import org.hibernate.annotations.FetchMode;
+import org.hibernate.validator.constraints.NotBlank;
 import org.springframework.format.annotation.DateTimeFormat;
 import ru.ulstu.core.model.BaseEntity;
 import ru.ulstu.core.model.EventSource;
@ -23,6 +12,19 @@ import ru.ulstu.paper.model.Paper;
 import ru.ulstu.timeline.model.Event;
 import ru.ulstu.user.model.User;

+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.DiscriminatorValue;
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.JoinColumn;
+import javax.persistence.JoinTable;
+import javax.persistence.ManyToMany;
+import javax.persistence.OneToMany;
+import javax.persistence.OrderBy;
+import javax.persistence.Table;
+import javax.persistence.Temporal;
+import javax.persistence.TemporalType;
 import java.util.ArrayList;
 import java.util.Comparator;
 import java.util.Date;
@ -61,21 +63,18 @@ public class Conference extends BaseEntity implements UserActivity, EventSource
    @OrderBy("date")
    private List<Deadline> deadlines = new ArrayList<>();

-    @OneToMany(cascade = CascadeType.MERGE, fetch = FetchType.LAZY)
-    @JoinColumn(name = "conference_id")
+    @ManyToMany(cascade = CascadeType.MERGE, fetch = FetchType.EAGER)
+    @JoinTable(name = "paper_conference",
+            joinColumns = {@JoinColumn(name = "conference_id")},
+            inverseJoinColumns = {@JoinColumn(name = "paper_id")})
+    @Fetch(FetchMode.SUBSELECT)
    private List<Paper> papers = new ArrayList<>();

-    @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY)
+    @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER)
    @JoinColumn(name = "conference_id", unique = true)
+    @Fetch(FetchMode.SUBSELECT)
    private List<ConferenceUser> users = new ArrayList<>();

-    public Conference() {
-    }
-
-    public Conference(@NotBlank String title) {
-        this.title = title;
-    }
-
    public String getTitle() {
        return title;
    }
--- a/src/main/java/ru/ulstu/conference/model/ConferenceDto.java
+++ b/src/main/java/ru/ulstu/conference/model/ConferenceDto.java
@ -2,16 +2,15 @@ package ru.ulstu.conference.model;

 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
-import jakarta.persistence.Temporal;
-import jakarta.persistence.TemporalType;
-import jakarta.validation.constraints.NotEmpty;
-import jakarta.validation.constraints.Size;
+import org.hibernate.validator.constraints.NotEmpty;
 import org.springframework.format.annotation.DateTimeFormat;
-import ru.ulstu.core.model.BaseEntity;
 import ru.ulstu.deadline.model.Deadline;
 import ru.ulstu.name.NameContainer;
 import ru.ulstu.paper.model.Paper;

+import javax.persistence.Temporal;
+import javax.persistence.TemporalType;
+import javax.validation.constraints.Size;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
@ -91,8 +90,8 @@ public class ConferenceDto extends NameContainer {
        this.beginDate = conference.getBeginDate();
        this.endDate = conference.getEndDate();
        this.deadlines = conference.getDeadlines();
-        this.userIds = convert(conference.getUsers(), BaseEntity::getId);
-        this.paperIds = convert(conference.getPapers(), BaseEntity::getId);
+        this.userIds = convert(conference.getUsers(), user -> user.getId());
+        this.paperIds = convert(conference.getPapers(), paper -> paper.getId());
        this.users = conference.getUsers();
        this.papers = conference.getPapers();
    }
--- a/src/main/java/ru/ulstu/conference/model/ConferenceUser.java
+++ b/src/main/java/ru/ulstu/conference/model/ConferenceUser.java
@ -2,17 +2,18 @@ package ru.ulstu.conference.model;

 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
-import jakarta.persistence.Column;
-import jakarta.persistence.Entity;
-import jakarta.persistence.EnumType;
-import jakarta.persistence.Enumerated;
-import jakarta.persistence.JoinColumn;
-import jakarta.persistence.ManyToOne;
-import jakarta.persistence.Table;
-import jakarta.validation.constraints.NotNull;
 import ru.ulstu.core.model.BaseEntity;
 import ru.ulstu.user.model.User;

+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.EnumType;
+import javax.persistence.Enumerated;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+import javax.persistence.Table;
+import javax.validation.constraints.NotNull;
+
@Entity
@Table(name = "users_conference")
 public class ConferenceUser extends BaseEntity {
@ -21,7 +22,7 @@ public class ConferenceUser extends BaseEntity {
        INTRAMURAL("Очная"),
        EXTRAMURAL("Заочная");

-        private final String participationName;
+        private String participationName;

        Participation(String name) {
            this.participationName = name;
@ -37,7 +38,7 @@ public class ConferenceUser extends BaseEntity {
        REPORT("Доклад"),
        PRESENTATION("Презентация");

-        private final String depositName;
+        private String depositName;

        Deposit(String name) {
            this.depositName = name;
@ -68,7 +69,6 @@ public class ConferenceUser extends BaseEntity {

    public ConferenceUser(User user) {
        this.user = user;
-        this.deposit = Deposit.REPORT;
    }

    @JsonCreator
--- a/src/main/java/ru/ulstu/conference/repository/ConferenceRepository.java
+++ b/src/main/java/ru/ulstu/conference/repository/ConferenceRepository.java
@ -13,7 +13,7 @@ import java.util.List;

 public interface ConferenceRepository extends JpaRepository<Conference, Integer>, BaseRepository {
    @Query("SELECT c FROM Conference c LEFT JOIN c.users u WHERE (:user IS NULL OR u.user = :user) " +
-            "AND (YEAR(c.beginDate) = :year OR :year IS NULL) ORDER BY c.beginDate DESC")
+            "AND (YEAR(c.beginDate) = :year OR :year IS NULL) ORDER BY begin_date DESC")
    List<Conference> findByUserAndYear(@Param("user") User user, @Param("year") Integer year);

    @Query("SELECT c FROM Conference c WHERE c.beginDate > :date")
@ -28,7 +28,7 @@ public interface ConferenceRepository extends JpaRepository<Conference, Integer>

    @Override
    @Query("SELECT title FROM Conference c WHERE (c.title = :name) AND (:id IS NULL OR c.id != :id) ")
-    List<String> findByNameAndNotId(@Param("name") String name, @Param("id") Integer id);
+    String findByNameAndNotId(@Param("name") String name, @Param("id") Integer id);

    @Query("SELECT c FROM Conference c LEFT JOIN c.users u WHERE (:user IS NULL OR u.user = :user) " +
            "AND (u.participation = 'INTRAMURAL') AND (c.beginDate <= CURRENT_DATE) AND (c.endDate >= CURRENT_DATE)")
--- a/src/main/java/ru/ulstu/conference/service/ConferenceNotificationService.java
+++ b/src/main/java/ru/ulstu/conference/service/ConferenceNotificationService.java
@ -1,5 +1,6 @@
 package ru.ulstu.conference.service;

+import com.google.common.collect.ImmutableMap;
 import org.springframework.stereotype.Service;
 import ru.ulstu.conference.model.Conference;
 import ru.ulstu.core.util.DateUtils;
@ -56,27 +57,27 @@ public class ConferenceNotificationService {
    }

    private void sendMessageDeadline(Conference conference) {
-        Map<String, Object> variables = Map.of("conference", conference);
+        Map<String, Object> variables = ImmutableMap.of("conference", conference);
        sendForAllParticipants(variables, conference, TEMPLATE_DEADLINE, String.format(TITLE_DEADLINE, conference.getTitle()));
    }

    public void sendCreateNotification(Conference conference) {
-        Map<String, Object> variables = Map.of("conference", conference);
-        sendForAllUsers(variables, String.format(TITLE_CREATE, conference.getTitle()));
+        Map<String, Object> variables = ImmutableMap.of("conference", conference);
+        sendForAllUsers(variables, TEMPLATE_CREATE, String.format(TITLE_CREATE, conference.getTitle()));
    }

    public void updateDeadlineNotification(Conference conference) {
-        Map<String, Object> variables = Map.of("conference", conference);
+        Map<String, Object> variables = ImmutableMap.of("conference", conference);
        sendForAllParticipants(variables, conference, TEMPLATE_UPDATE_DEADLINES, String.format(TITLE_UPDATE_DEADLINES, conference.getTitle()));
    }

    public void updateConferencesDatesNotification(Conference conference, Date oldBeginDate, Date oldEndDate) {
-        Map<String, Object> variables = Map.of("conference", conference, "oldBeginDate", oldBeginDate, "oldEndDate", oldEndDate);
+        Map<String, Object> variables = ImmutableMap.of("conference", conference, "oldBeginDate", oldBeginDate, "oldEndDate", oldEndDate);
        sendForAllParticipants(variables, conference, TEMPLATE_UPDATE_DATES, String.format(TITLE_UPDATE_DATES, conference.getTitle()));
    }

-    private void sendForAllUsers(Map<String, Object> variables, String title) {
-        userService.findAll().forEach(user -> mailService.sendEmailFromTemplate(variables, user, ConferenceNotificationService.TEMPLATE_CREATE, title));
+    private void sendForAllUsers(Map<String, Object> variables, String template, String title) {
+        userService.findAll().forEach(user -> mailService.sendEmailFromTemplate(variables, user, template, title));
    }

    private void sendForAllParticipants(Map<String, Object> variables, Conference conference, String template, String title) {
@ -106,7 +107,7 @@ public class ConferenceNotificationService {
    }

    private void sendMessagePing(Conference conference) {
-        Map<String, Object> variables = Map.of("conference", conference);
+        Map<String, Object> variables = ImmutableMap.of("conference", conference);
        sendForAllParticipants(variables, conference, TEMPLATE_PING, String.format(TITLE_PING, conference.getTitle()));
    }
 }
--- a/src/main/java/ru/ulstu/conference/service/ConferenceService.java
+++ b/src/main/java/ru/ulstu/conference/service/ConferenceService.java
@ -11,26 +11,25 @@ import ru.ulstu.conference.model.ConferenceDto;
 import ru.ulstu.conference.model.ConferenceFilterDto;
 import ru.ulstu.conference.model.ConferenceUser;
 import ru.ulstu.conference.repository.ConferenceRepository;
-import ru.ulstu.core.util.DateUtils;
 import ru.ulstu.deadline.model.Deadline;
 import ru.ulstu.deadline.service.DeadlineService;
 import ru.ulstu.name.BaseService;
 import ru.ulstu.paper.model.Paper;
 import ru.ulstu.paper.service.PaperService;
+import ru.ulstu.ping.model.Ping;
 import ru.ulstu.ping.service.PingService;
 import ru.ulstu.timeline.service.EventService;
 import ru.ulstu.user.model.User;
 import ru.ulstu.user.service.UserService;

 import java.io.IOException;
-import java.time.temporal.ChronoUnit;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collections;
 import java.util.Date;
 import java.util.List;
 import java.util.stream.Collectors;

-import static java.util.stream.Collectors.toList;
 import static org.springframework.util.ObjectUtils.isEmpty;
 import static ru.ulstu.core.util.StreamApiUtils.convert;

@ -67,7 +66,7 @@ public class ConferenceService extends BaseService {
    }

    public ConferenceDto getExistConferenceById(Integer id) {
-        ConferenceDto conferenceDto = new ConferenceDto(conferenceRepository.getOne(id));
+        ConferenceDto conferenceDto = new ConferenceDto(conferenceRepository.findOne(id));
        conferenceDto.setNotSelectedPapers(getNotSelectPapers(conferenceDto.getPaperIds()));
        conferenceDto.setDisabledTakePart(isCurrentUserParticipant(conferenceDto.getUsers()));
        return conferenceDto;
@ -81,7 +80,7 @@ public class ConferenceService extends BaseService {


    public List<Conference> findAll() {
-        return conferenceRepository.findAll(Sort.by(Sort.Direction.DESC, "beginDate"));
+        return conferenceRepository.findAll(new Sort(Sort.Direction.DESC, "beginDate"));
    }

    public List<ConferenceDto> findAllDto() {
@ -98,6 +97,7 @@ public class ConferenceService extends BaseService {
        checkUniqueName(conferenceDto,
                errors,
                conferenceDto.getId(),
+                "title",
                "Конференция с таким именем уже существует");
        if (errors.hasErrors()) {
            return false;
@ -112,63 +112,43 @@ public class ConferenceService extends BaseService {
        return true;
    }

-    public Conference save(Conference conference) {
-        if (isEmpty(conference.getId())) {
-            return create(conference);
-        } else {
-            return update(conference);
-        }
-    }
-
    @Transactional
    public Conference create(ConferenceDto conferenceDto) throws IOException {
-        return create(copyFromDto(new Conference(), conferenceDto));
+        Conference newConference = copyFromDto(new Conference(), conferenceDto);
+        newConference = conferenceRepository.save(newConference);
+        conferenceNotificationService.sendCreateNotification(newConference);
+        eventService.createFromObject(newConference, Collections.emptyList(), false, "конференции");
+        return newConference;
    }

    @Transactional
-    public Conference create(Conference conference) {
-        conference = conferenceRepository.save(conference);
-        conferenceNotificationService.sendCreateNotification(conference);
-        return conference;
-    }
-
-    @Transactional
-    private Conference update(ConferenceDto conferenceDto) throws IOException {
-        return update(copyFromDto(conferenceRepository.getOne(conferenceDto.getId()), conferenceDto));
-    }
-
-    @Transactional
-    private Conference update(Conference conference) {
-        Conference oldConference = conferenceRepository.getOne(conference.getId());
-        List<Deadline> oldDeadlines = oldConference.getDeadlines().stream()
+    public Conference update(ConferenceDto conferenceDto) throws IOException {
+        Conference conference = conferenceRepository.findOne(conferenceDto.getId());
+        List<Deadline> oldDeadlines = conference.getDeadlines().stream()
                .map(this::copyDeadline)
                .collect(Collectors.toList());
        Date oldBeginDate = conference.getBeginDate();
        Date oldEndDate = conference.getEndDate();
-        conferenceRepository.save(conference);
+        conferenceRepository.save(copyFromDto(conference, conferenceDto));
+        eventService.updateConferenceDeadlines(conference);
        sendNotificationAfterUpdateDeadlines(conference, oldDeadlines);
        if (!conference.getBeginDate().equals(oldBeginDate) || !conference.getEndDate().equals(oldEndDate)) {
            conferenceNotificationService.updateConferencesDatesNotification(conference, oldBeginDate, oldEndDate);
        }
+        conferenceDto.getRemovedDeadlineIds().forEach(deadlineService::remove);
        return conference;
    }

    @Transactional
    public boolean delete(Integer conferenceId) {
-        if (conferenceRepository.existsById(conferenceId)) {
-            eventService.removeConferencesEvent(conferenceRepository.getOne(conferenceId));
-            conferenceRepository.deleteById(conferenceId);
+        if (conferenceRepository.exists(conferenceId)) {
+            eventService.removeConferencesEvent(conferenceRepository.findOne(conferenceId));
+            conferenceRepository.delete(conferenceId);
            return true;
        }
        return false;
    }

-    @Transactional
-    public boolean delete(List<Conference> conferences) {
-        conferences.forEach(conference -> delete(conference.getId()));
-        return true;
-    }
-
    public ConferenceDto addDeadline(ConferenceDto conferenceDto) {
        conferenceDto.getDeadlines().add(new Deadline());
        return conferenceDto;
@ -254,7 +234,7 @@ public class ConferenceService extends BaseService {
        return convert(findAllActive(), ConferenceDto::new);
    }

-    public List<Conference> findAllActive() {
+    private List<Conference> findAllActive() {
        return conferenceRepository.findAllActive(new Date());
    }

@ -268,8 +248,8 @@ public class ConferenceService extends BaseService {
        conferenceRepository.updatePingConference(conferenceDto.getId());
    }

-    public Conference findOne(Integer conferenceId) {
-        return conferenceRepository.getOne(conferenceId);
+    private Conference findOne(Integer conferenceId) {
+        return conferenceRepository.findOne(conferenceId);
    }

    public void setChartData(ModelMap modelMap) {
@ -314,7 +294,7 @@ public class ConferenceService extends BaseService {
        return newDeadline;
    }

-    private void checkEmptyFieldsOfDeadline(ConferenceDto conferenceDto, Errors errors) {
+    public void checkEmptyFieldsOfDeadline(ConferenceDto conferenceDto, Errors errors) {
        for (Deadline deadline : conferenceDto.getDeadlines()) {
            if (deadline.getDate() == null || deadline.getDescription().isEmpty()) {
                errors.rejectValue("deadlines", "errorCode", "Все поля дедлайна должны быть заполнены");
@ -337,22 +317,4 @@ public class ConferenceService extends BaseService {
    public Conference getActiveConferenceByUser(User user) {
        return conferenceRepository.findActiveByUser(user);
    }
-
-    public Conference createByTitle(String newConferenceTitle) {
-        Conference conference = new Conference(newConferenceTitle);
-        conference.setBeginDate(DateUtils.localDateToDate(DateUtils.convertToLocalDate(new Date()).plus(1, ChronoUnit.WEEKS)));
-        conference.setEndDate(DateUtils.localDateToDate(DateUtils.convertToLocalDate(new Date()).plus(2, ChronoUnit.WEEKS)));
-        conference.getUsers().add(new ConferenceUser(userService.getCurrentUser()));
-        conference.getDeadlines().add(deadlineService.createWithOffset(new Date(), 1, ChronoUnit.WEEKS));
-        return save(conference);
-    }
-
-    public List<Conference> findAllActiveByCurrentUser() {
-        return findAllActive()
-                .stream()
-                .filter(conference -> conference.getUsers()
-                        .stream()
-                        .anyMatch(user -> user.getUser().equals(userService.getCurrentUser())))
-                .collect(toList());
-    }
 }
--- a/src/main/java/ru/ulstu/conference/service/ConferenceUserService.java
+++ b/src/main/java/ru/ulstu/conference/service/ConferenceUserService.java
@ -26,8 +26,8 @@ public class ConferenceUserService {
    }

    @Transactional
-    private ConferenceUser update(ConferenceUser user) {
-        ConferenceUser updateUser = conferenceUserRepository.getOne(user.getId());
+    public ConferenceUser update(ConferenceUser user) {
+        ConferenceUser updateUser = conferenceUserRepository.findOne(user.getId());
        updateUser.setDeposit(user.getDeposit());
        updateUser.setParticipation(user.getParticipation());
        conferenceUserRepository.save(updateUser);
@ -35,7 +35,7 @@ public class ConferenceUserService {
    }

    @Transactional
-    private ConferenceUser create(ConferenceUser user) {
+    public ConferenceUser create(ConferenceUser user) {
        ConferenceUser newUser = new ConferenceUser();
        newUser.setDeposit(user.getDeposit());
        newUser.setParticipation(user.getParticipation());
--- a/src/main/java/ru/ulstu/configuration/ApplicationProperties.java
+++ b/src/main/java/ru/ulstu/configuration/ApplicationProperties.java
@ -1,6 +1,6 @@
 package ru.ulstu.configuration;

-import jakarta.validation.constraints.NotBlank;
+import org.hibernate.validator.constraints.NotBlank;
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.stereotype.Component;
 import org.springframework.validation.annotation.Validated;
--- a/src/main/java/ru/ulstu/configuration/HttpListenerConfiguration.java
+++ b/src/main/java/ru/ulstu/configuration/HttpListenerConfiguration.java
@ -0,0 +1,30 @@
+package ru.ulstu.configuration;
+
+import org.eclipse.jetty.server.ServerConnector;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.context.embedded.ConfigurableEmbeddedServletContainer;
+import org.springframework.boot.context.embedded.EmbeddedServletContainerCustomizer;
+import org.springframework.boot.context.embedded.jetty.JettyEmbeddedServletContainerFactory;
+import org.springframework.boot.context.embedded.jetty.JettyServerCustomizer;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class HttpListenerConfiguration implements EmbeddedServletContainerCustomizer {
+    @Value("${server.http.port}")
+    private int httpPort;
+
+    private void configureJetty(JettyEmbeddedServletContainerFactory jettyFactory) {
+        jettyFactory.addServerCustomizers((JettyServerCustomizer) server -> {
+            ServerConnector serverConnector = new ServerConnector(server);
+            serverConnector.setPort(httpPort);
+            server.addConnector(serverConnector);
+        });
+    }
+
+    @Override
+    public void customize(ConfigurableEmbeddedServletContainer container) {
+        if (container instanceof JettyEmbeddedServletContainerFactory) {
+            configureJetty((JettyEmbeddedServletContainerFactory) container);
+        }
+    }
+}
--- a/src/main/java/ru/ulstu/configuration/MailTemplateConfiguration.java
+++ b/src/main/java/ru/ulstu/configuration/MailTemplateConfiguration.java
@ -1,10 +1,10 @@
 package ru.ulstu.configuration;

-import nz.net.ultraq.thymeleaf.layoutdialect.LayoutDialect;
+import nz.net.ultraq.thymeleaf.LayoutDialect;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.thymeleaf.extras.springsecurity6.dialect.SpringSecurityDialect;
-import org.thymeleaf.spring6.SpringTemplateEngine;
+import org.thymeleaf.extras.springsecurity4.dialect.SpringSecurityDialect;
+import org.thymeleaf.spring4.SpringTemplateEngine;
 import org.thymeleaf.templateresolver.ClassLoaderTemplateResolver;
 import org.thymeleaf.templateresolver.ITemplateResolver;

@ -17,17 +17,30 @@ public class MailTemplateConfiguration {
        final SpringTemplateEngine templateEngine = new SpringTemplateEngine();
        templateEngine.addTemplateResolver(templateResolver);
        templateEngine.addTemplateResolver(emailTemplateResolver());
+        templateEngine.addTemplateResolver(mvcTemplateResolver());
        templateEngine.addDialect(new LayoutDialect());
        templateEngine.addDialect(sec);
        return templateEngine;
    }

-    private ClassLoaderTemplateResolver emailTemplateResolver() {
+    public ClassLoaderTemplateResolver emailTemplateResolver() {
        ClassLoaderTemplateResolver emailTemplateResolver = new ClassLoaderTemplateResolver();
-        emailTemplateResolver.setPrefix("/mail_templates/");
-        emailTemplateResolver.setTemplateMode("HTML");
+        emailTemplateResolver.setPrefix("mail_templates/");
+        emailTemplateResolver.setTemplateMode("HTML5");
        emailTemplateResolver.setSuffix(".html");
+        emailTemplateResolver.setOrder(1);
        emailTemplateResolver.setCharacterEncoding(StandardCharsets.UTF_8.name());
        return emailTemplateResolver;
    }
+
+    public ClassLoaderTemplateResolver mvcTemplateResolver() {
+        ClassLoaderTemplateResolver emailTemplateResolver = new ClassLoaderTemplateResolver();
+        emailTemplateResolver.setPrefix("templates");
+        emailTemplateResolver.setTemplateMode("HTML5");
+        emailTemplateResolver.setSuffix(".html");
+        emailTemplateResolver.setOrder(2);
+        emailTemplateResolver.setCharacterEncoding(StandardCharsets.UTF_8.name());
+        return emailTemplateResolver;
+    }
+
 }
--- a/src/main/java/ru/ulstu/configuration/MvcConfiguration.java
+++ b/src/main/java/ru/ulstu/configuration/MvcConfiguration.java
@ -3,10 +3,10 @@ package ru.ulstu.configuration;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
 import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
-import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

@Configuration
-public class MvcConfiguration implements WebMvcConfigurer {
+public class MvcConfiguration extends WebMvcConfigurerAdapter {
    @Override
    public void addViewControllers(ViewControllerRegistry registry) {
        registry.addViewController("/{articlename:\\w+}");
--- a/src/main/java/ru/ulstu/configuration/SecurityConfiguration.java
+++ b/src/main/java/ru/ulstu/configuration/SecurityConfiguration.java
@ -5,16 +5,14 @@ import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.BeanInitializationException;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
-import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.core.env.Environment;
 import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
+import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.config.annotation.web.builders.WebSecurity;
 import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
-import org.springframework.security.config.annotation.web.configuration.WebSecurityCustomizer;
-import org.springframework.security.config.annotation.web.configurers.AbstractHttpConfigurer;
+import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
 import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
-import org.springframework.security.web.SecurityFilterChain;
 import org.springframework.security.web.authentication.AuthenticationFailureHandler;
 import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
 import org.springframework.security.web.authentication.logout.LogoutSuccessHandler;
@ -25,12 +23,10 @@ import ru.ulstu.user.service.UserService;

@Configuration
@EnableWebSecurity
-public class SecurityConfiguration {
+@EnableGlobalMethodSecurity(prePostEnabled = true, securedEnabled = true)
+public class SecurityConfiguration extends WebSecurityConfigurerAdapter {
    private final Logger log = LoggerFactory.getLogger(SecurityConfiguration.class);

-    @Autowired
-    private Environment env;
-
    @Value("${server.http.port}")
    private int httpPort;
    @Value("${server.port}")
@ -57,61 +53,66 @@ public class SecurityConfiguration {
        this.authenticationFailureHandler = authenticationFailureHandler;
    }

-    @Bean
-    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
-        http.csrf(AbstractHttpConfigurer::disable);
+    @Override
+    protected void configure(HttpSecurity http) throws Exception {
+        http.csrf()
+                .disable();
        if (applicationProperties.isDevMode()) {
            log.debug("Security disabled");
-            http.authorizeHttpRequests((authz) -> authz
+            http.authorizeRequests()
                    .anyRequest()
-                    .permitAll()
-            );
-            http.anonymous((anonymousCustomizer) -> anonymousCustomizer
+                    .permitAll();
+            http.anonymous()
                    .principal("admin")
-                    .authorities(UserRoleConstants.ADMIN)
-            );
+                    .authorities(UserRoleConstants.ADMIN);
        } else {
            log.debug("Security enabled");
-            http.authorizeHttpRequests((authz) -> authz
-                            .requestMatchers(UserController.ACTIVATE_URL).permitAll()
-                            .requestMatchers(Constants.PASSWORD_RESET_REQUEST_PAGE).permitAll()
-                            .requestMatchers(Constants.PASSWORD_RESET_PAGE).permitAll()
-                            .requestMatchers("/users/block").permitAll()
-                            .requestMatchers(UserController.URL + UserController.REGISTER_URL).permitAll()
-                            .requestMatchers(UserController.URL + UserController.ACTIVATE_URL).permitAll()
-                            .requestMatchers(UserController.URL + UserController.PASSWORD_RESET_REQUEST_URL).permitAll()
-                            .requestMatchers(UserController.URL + UserController.PASSWORD_RESET_URL).permitAll()
-                            .requestMatchers("/swagger-ui.html").hasAuthority(UserRoleConstants.ADMIN)
-                            .anyRequest().authenticated())
-                    .formLogin((formLoginCustomizer) -> formLoginCustomizer
-                            .loginPage("/login")
-                            .successHandler(authenticationSuccessHandler)
-                            .failureHandler(authenticationFailureHandler)
-                            .permitAll()
-                    )
-                    .rememberMe(rememberMe -> rememberMe.key("uniqueAndSecret"))
-                    .logout((logoutCustomizer) -> logoutCustomizer
-                            .logoutSuccessHandler(logoutSuccessHandler)
-                            .logoutSuccessUrl(Constants.LOGOUT_URL)
-                            .invalidateHttpSession(false)
-                            .clearAuthentication(true)
-                            .deleteCookies(Constants.COOKIES_NAME)
-                            .permitAll()
-                    );
-            http.csrf(AbstractHttpConfigurer::disable);
+            http.authorizeRequests()
+                    .antMatchers(UserController.ACTIVATE_URL).permitAll()
+                    .antMatchers(Constants.PASSWORD_RESET_REQUEST_PAGE).permitAll()
+                    .antMatchers(Constants.PASSWORD_RESET_PAGE).permitAll()
+                    .antMatchers("/users/block").permitAll()
+                    .antMatchers(UserController.URL + UserController.REGISTER_URL).permitAll()
+                    .antMatchers(UserController.URL + UserController.ACTIVATE_URL).permitAll()
+                    .antMatchers(UserController.URL + UserController.PASSWORD_RESET_REQUEST_URL).permitAll()
+                    .antMatchers(UserController.URL + UserController.PASSWORD_RESET_URL).permitAll()
+                    .antMatchers("/swagger-ui.html").hasAuthority(UserRoleConstants.ADMIN)
+                    .anyRequest().authenticated()
+                    .and()
+                    .formLogin()
+                    .loginPage("/login")
+                    .successHandler(authenticationSuccessHandler)
+                    .failureHandler(authenticationFailureHandler)
+                    .permitAll()
+                    .and()
+                    .logout()
+                    .logoutSuccessHandler(logoutSuccessHandler)
+                    .logoutSuccessUrl(Constants.LOGOUT_URL)
+                    .invalidateHttpSession(false)
+                    .clearAuthentication(true)
+                    .deleteCookies(Constants.COOKIES_NAME)
+                    .permitAll();
        }
-        return http.build();
+        if (applicationProperties.isUseHttps()) {
+            http.portMapper()
+                    .http(httpPort)
+                    .mapsTo(httpsPort)
+                    .and()
+                    .requiresChannel()
+                    .anyRequest()
+                    .requiresSecure();
+        }
+
    }

-    @Bean
-    public WebSecurityCustomizer webSecurityCustomizer() {
-        return (web) -> web.ignoring()
-                .requestMatchers("/css/**",
-                        "/javax.faces.resource/**",
-                        "/js/**",
-                        "/templates/**",
-                        "/webjars/**",
-                        "/img/**");
+    @Override
+    public void configure(WebSecurity web) {
+        web.ignoring()
+                .antMatchers("/css/**")
+                .antMatchers("/js/**")
+                .antMatchers("/templates/**")
+                .antMatchers("/webjars/**")
+                .antMatchers("/img/**");
    }

    @Autowired
--- a/src/main/java/ru/ulstu/configuration/SwaggerConfiguration.java
+++ b/src/main/java/ru/ulstu/configuration/SwaggerConfiguration.java
@ -0,0 +1,23 @@
+package ru.ulstu.configuration;
+
+import com.google.common.base.Predicates;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import springfox.documentation.builders.PathSelectors;
+import springfox.documentation.builders.RequestHandlerSelectors;
+import springfox.documentation.spi.DocumentationType;
+import springfox.documentation.spring.web.plugins.Docket;
+import springfox.documentation.swagger2.annotations.EnableSwagger2;
+
+@Configuration
+@EnableSwagger2
+public class SwaggerConfiguration {
+    @Bean
+    public Docket swaggerApi() {
+        return new Docket(DocumentationType.SWAGGER_2)
+                .select()
+                .apis(RequestHandlerSelectors.any())
+                .paths(Predicates.not(PathSelectors.regex("/error")))
+                .build();
+    }
+}
--- a/src/main/java/ru/ulstu/core/controller/AdviceController.java
+++ b/src/main/java/ru/ulstu/core/controller/AdviceController.java
@ -4,6 +4,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.validation.FieldError;
 import org.springframework.web.bind.MethodArgumentNotValidException;
+import org.springframework.web.bind.annotation.ControllerAdvice;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.ModelAttribute;
 import ru.ulstu.core.error.EntityIdIsNullException;
@ -25,7 +26,7 @@ import ru.ulstu.user.service.UserService;
 import java.util.Set;
 import java.util.stream.Collectors;

-//@ControllerAdvice
+@ControllerAdvice
 public class AdviceController {
    private final Logger log = LoggerFactory.getLogger(AdviceController.class);
    private final UserService userService;
--- a/src/main/java/ru/ulstu/core/jpa/OffsetablePageRequest.java
+++ b/src/main/java/ru/ulstu/core/jpa/OffsetablePageRequest.java
@ -6,19 +6,19 @@ import org.springframework.data.domain.Sort;
 import java.io.Serializable;

 public class OffsetablePageRequest implements Pageable, Serializable {
-    private final long offset;
+    private final int offset;
    private final int count;
    private final Sort sort;

-    public OffsetablePageRequest(long offset, int count) {
+    public OffsetablePageRequest(int offset, int count) {
        this(offset, count, null);
    }

-    public OffsetablePageRequest(long offset, int count, Sort.Direction direction, String... properties) {
-        this(offset, count, Sort.by(direction, properties));
+    public OffsetablePageRequest(int offset, int count, Sort.Direction direction, String... properties) {
+        this(offset, count, new Sort(direction, properties));
    }

-    public OffsetablePageRequest(long offset, int count, Sort sort) {
+    public OffsetablePageRequest(int offset, int count, Sort sort) {
        if (offset < 0) {
            throw new IllegalArgumentException("Offset value must not be less than zero!");
        }
@ -30,12 +30,6 @@ public class OffsetablePageRequest implements Pageable, Serializable {
        this.sort = sort;
    }

-    @Override
-    public Pageable withPage(int pageNumber) {
-        //TODO
-        return null;
-    }
-
    @Override
    public Sort getSort() {
        return sort;
@ -48,11 +42,11 @@ public class OffsetablePageRequest implements Pageable, Serializable {

    @Override
    public int getPageNumber() {
-        return (int) (offset / count);
+        return offset / count;
    }

    @Override
-    public long getOffset() {
+    public int getOffset() {
        return offset;
    }

@ -71,7 +65,7 @@ public class OffsetablePageRequest implements Pageable, Serializable {
        return hasPrevious() ? previous() : first();
    }

-    private Pageable previous() {
+    public Pageable previous() {
        return getOffset() == 0 ? this : new OffsetablePageRequest(getOffset() - getPageSize(), getPageSize(), getSort());
    }

@ -95,9 +89,9 @@ public class OffsetablePageRequest implements Pageable, Serializable {
    @Override
    public int hashCode() {
        final int prime = 31;
-        long result = 1;
+        int result = 1;
        result = prime * result + offset;
        result = prime * result + count;
-        return (int) result;
+        return result;
    }
 }
--- a/src/main/java/ru/ulstu/core/model/AuthFailureHandler.java
+++ b/src/main/java/ru/ulstu/core/model/AuthFailureHandler.java
@ -1,12 +1,12 @@
 package ru.ulstu.core.model;

-import jakarta.servlet.http.HttpServletRequest;
-import jakarta.servlet.http.HttpServletResponse;
 import org.springframework.security.core.AuthenticationException;
 import org.springframework.security.web.authentication.AuthenticationFailureHandler;
 import org.springframework.stereotype.Component;
 import ru.ulstu.user.error.UserBlockedException;

+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
 import java.io.IOException;

@Component
--- a/src/main/java/ru/ulstu/core/model/BaseEntity.java
+++ b/src/main/java/ru/ulstu/core/model/BaseEntity.java
@ -1,16 +1,14 @@
 package ru.ulstu.core.model;

-import jakarta.persistence.GeneratedValue;
-import jakarta.persistence.GenerationType;
-import jakarta.persistence.Id;
-import jakarta.persistence.MappedSuperclass;
-import jakarta.persistence.Version;
-import jakarta.validation.constraints.NotNull;
-
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.MappedSuperclass;
+import javax.persistence.Version;
 import java.io.Serializable;

@MappedSuperclass
-public abstract class BaseEntity implements Serializable, Comparable<BaseEntity> {
+public abstract class BaseEntity implements Serializable, Comparable {
    @Id
    @GeneratedValue(strategy = GenerationType.TABLE)
    private Integer id;
@ -18,6 +16,14 @@ public abstract class BaseEntity implements Serializable, Comparable<BaseEntity>
    @Version
    private Integer version;

+    public BaseEntity() {
+    }
+
+    public BaseEntity(Integer id, Integer version) {
+        this.id = id;
+        this.version = version;
+    }
+
    public Integer getId() {
        return id;
    }
@ -69,8 +75,8 @@ public abstract class BaseEntity implements Serializable, Comparable<BaseEntity>
    }

    @Override
-    public int compareTo(@NotNull BaseEntity o) {
-        return id != null ? id.compareTo(o.getId()) : -1;
+    public int compareTo(Object o) {
+        return id != null ? id.compareTo(((BaseEntity) o).getId()) : -1;
    }

    public void reset() {
--- a/src/main/java/ru/ulstu/core/model/ErrorConstants.java
+++ b/src/main/java/ru/ulstu/core/model/ErrorConstants.java
@ -16,8 +16,8 @@ public enum ErrorConstants {
    FILE_UPLOAD_ERROR(110, "File upload error"),
    USER_SENDING_MAIL_EXCEPTION(111, "Во время отправки приглашения пользователю произошла ошибка");

-    private final int code;
-    private final String message;
+    private int code;
+    private String message;

    ErrorConstants(int code, String message) {
        this.code = code;
--- a/src/main/java/ru/ulstu/core/model/TreeDto.java
+++ b/src/main/java/ru/ulstu/core/model/TreeDto.java
@ -0,0 +1,34 @@
+package ru.ulstu.core.model;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class TreeDto {
+    private Integer id;
+    private String text;
+    private List<TreeDto> children = new ArrayList<>();
+
+    public TreeDto() {
+    }
+
+    public <T extends TreeEntity> TreeDto(TreeEntity item) {
+        this.text = item.toString();
+        this.id = item.getId();
+    }
+
+    public TreeDto(String rootName) {
+        this.text = rootName;
+    }
+
+    public String getText() {
+        return text;
+    }
+
+    public List<TreeDto> getChildren() {
+        return children;
+    }
+
+    public Integer getId() {
+        return id;
+    }
+}
--- a/src/main/java/ru/ulstu/core/model/TreeEntity.java
+++ b/src/main/java/ru/ulstu/core/model/TreeEntity.java
@ -0,0 +1,16 @@
+package ru.ulstu.core.model;
+
+import java.util.List;
+
+public interface TreeEntity<T> {
+
+    Integer getId();
+
+    List<T> getChildren();
+
+    void setChildren(List<T> children);
+
+    T getParent();
+
+    void setParent(T parent);
+}
--- a/src/main/java/ru/ulstu/core/model/UserActivity.java
+++ b/src/main/java/ru/ulstu/core/model/UserActivity.java
@ -6,6 +6,5 @@ import java.util.Set;

 public interface UserActivity {
    String getTitle();
-
    Set<User> getActivityUsers();
 }
--- a/src/main/java/ru/ulstu/core/model/response/ControllerResponse.java
+++ b/src/main/java/ru/ulstu/core/model/response/ControllerResponse.java
@ -1,8 +1,8 @@
 package ru.ulstu.core.model.response;

 class ControllerResponse<D, E> {
-    private final D data;
-    private final ControllerResponseError<E> error;
+    private D data;
+    private ControllerResponseError<E> error;

    ControllerResponse(D data) {
        this.data = data;
--- a/src/main/java/ru/ulstu/core/model/response/ControllerResponseError.java
+++ b/src/main/java/ru/ulstu/core/model/response/ControllerResponseError.java
@ -3,8 +3,8 @@ package ru.ulstu.core.model.response;
 import ru.ulstu.core.model.ErrorConstants;

 class ControllerResponseError<D> {
-    private final ErrorConstants description;
-    private final D data;
+    private ErrorConstants description;
+    private D data;

    ControllerResponseError(ErrorConstants description, D data) {
        this.description = description;
--- a/src/main/java/ru/ulstu/core/navigation/Page.java
+++ b/src/main/java/ru/ulstu/core/navigation/Page.java
@ -1,69 +0,0 @@
-package ru.ulstu.core.navigation;
-
-public class Page {
-    public static final String INDEX = "/index.html";
-    public static final String PAPER = "/paper/paper.html";
-    public static final String PAPER_LIST = "/paper/papers.html";
-    public static final String PAPER_DASHBOARD = "/paper/dashboard.html";
-    public static final String GRANT = "/grant/grant.html";
-    public static final String GRANT_LIST = "/grant/grants.html";
-    public static final String GRANT_DASHBOARD = "/grant/dashboard.html";
-    public static final String USER_LIST = "/admin/users.html";
-    public static final String LOGOUT = "/logout";
-    public static final String CONFERENCE = "/conference/conference.html";
-    public static final String CONFERENCE_DASHBOARD = "/conference/dashboard.html";
-    public static final String CONFERENCE_LIST = "/conference/conferences.html";
-    public static final String PROJECT_DASHBOARD = "/conference/dashboard.html";
-
-    public String getIndex() {
-        return INDEX;
-    }
-
-    public String getPaperList() {
-        return PAPER_LIST;
-    }
-
-    public String getPaperDashboard() {
-        return PAPER_DASHBOARD;
-    }
-
-    public String getUserList() {
-        return USER_LIST;
-    }
-
-    public String getLogout() {
-        return LOGOUT;
-    }
-
-    public String getGrantList() {
-        return GRANT_LIST;
-    }
-
-    public String getGrantDashboard() {
-        return GRANT_DASHBOARD;
-    }
-
-    public String getPaper() {
-        return PAPER;
-    }
-
-    public String getGrant() {
-        return GRANT;
-    }
-
-    public String getConferenceDashboard() {
-        return CONFERENCE_DASHBOARD;
-    }
-
-    public String getProjectDashboard() {
-        return PROJECT_DASHBOARD;
-    }
-
-    public String getConference() {
-        return CONFERENCE;
-    }
-
-    public String getConferenceList() {
-        return CONFERENCE_LIST;
-    }
-}
--- a/src/main/java/ru/ulstu/core/repository/JpaDetachableRepositoryImpl.java
+++ b/src/main/java/ru/ulstu/core/repository/JpaDetachableRepositoryImpl.java
@ -1,14 +1,14 @@
 package ru.ulstu.core.repository;

-import jakarta.persistence.EntityManager;
 import org.springframework.data.jpa.repository.support.JpaEntityInformation;
 import org.springframework.data.jpa.repository.support.SimpleJpaRepository;

+import javax.persistence.EntityManager;
 import java.io.Serializable;

 public class JpaDetachableRepositoryImpl<T, ID extends Serializable> extends SimpleJpaRepository<T, ID>
        implements JpaDetachableRepository<T, ID> {
-    private final EntityManager entityManager;
+    private EntityManager entityManager;

    public JpaDetachableRepositoryImpl(JpaEntityInformation<T, ?> entityInformation, EntityManager entityManager) {
        super(entityInformation, entityManager);
--- a/src/main/java/ru/ulstu/core/util/DateUtils.java
+++ b/src/main/java/ru/ulstu/core/util/DateUtils.java
@ -14,9 +14,6 @@ import java.util.List;
 public class DateUtils {

    public static Date clearTime(Date date) {
-        if (date == null) {
-            return null;
-        }
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        calendar.set(Calendar.HOUR_OF_DAY, 0);
@ -63,10 +60,4 @@ public class DateUtils {
        cal.add(Calendar.YEAR, count);
        return cal.getTime();
    }
-
-    public static LocalDate convertToLocalDate(Date dateToConvert) {
-        return dateToConvert.toInstant()
-                .atZone(ZoneId.systemDefault())
-                .toLocalDate();
-    }
 }
--- a/src/main/java/ru/ulstu/core/util/NumberUtils.java
+++ b/src/main/java/ru/ulstu/core/util/NumberUtils.java
@ -0,0 +1,17 @@
+package ru.ulstu.core.util;
+
+public class NumberUtils {
+    public static Double ceil(Double number) {
+        if (number == null) {
+            return 0.0;
+        }
+        return Double.valueOf(Math.ceil(number));
+    }
+
+    public static Double round(Double number) {
+        if (number == null) {
+            return 0.0;
+        }
+        return Double.valueOf(Math.ceil(number * 100)) / 100;
+    }
+}
--- a/src/main/java/ru/ulstu/core/util/StreamApiUtils.java
+++ b/src/main/java/ru/ulstu/core/util/StreamApiUtils.java
@ -11,12 +11,12 @@ public class StreamApiUtils {
    public static <T, R> List<T> convert(List<R> entities, Function<R, T> converter) {
        return entities == null
                ? Collections.emptyList()
-                : entities.stream().map(converter).collect(Collectors.toList());
+                : entities.stream().map(e -> converter.apply(e)).collect(Collectors.toList());
    }

    public static <T, R> Set<T> convert(Set<R> entities, Function<R, T> converter) {
        return entities == null
                ? Collections.emptySet()
-                : entities.stream().map(converter).collect(Collectors.toSet());
+                : entities.stream().map(e -> converter.apply(e)).collect(Collectors.toSet());
    }
 }
--- a/src/main/java/ru/ulstu/deadline/model/Deadline.java
+++ b/src/main/java/ru/ulstu/deadline/model/Deadline.java
@ -2,15 +2,15 @@ package ru.ulstu.deadline.model;

 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
-import jakarta.persistence.Entity;
-import jakarta.persistence.FetchType;
-import jakarta.persistence.OneToMany;
-import jakarta.persistence.Temporal;
-import jakarta.persistence.TemporalType;
 import org.springframework.format.annotation.DateTimeFormat;
 import ru.ulstu.core.model.BaseEntity;
 import ru.ulstu.user.model.User;

+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.OneToMany;
+import javax.persistence.Temporal;
+import javax.persistence.TemporalType;
 import java.util.Date;
 import java.util.List;
 import java.util.Objects;
@ -108,7 +108,9 @@ public class Deadline extends BaseEntity {
        }
        return getId().equals(deadline.getId()) &&
                description.equals(deadline.description) &&
-                date.equals(deadline.date);
+                date.equals(deadline.date) &&
+                executors.equals(deadline.executors) &&
+                done.equals(deadline.done);
    }

    @Override
--- a/src/main/java/ru/ulstu/deadline/service/DeadlineService.java
+++ b/src/main/java/ru/ulstu/deadline/service/DeadlineService.java
@ -2,11 +2,9 @@ package ru.ulstu.deadline.service;

 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
-import ru.ulstu.core.util.DateUtils;
 import ru.ulstu.deadline.model.Deadline;
 import ru.ulstu.deadline.repository.DeadlineRepository;

-import java.time.temporal.ChronoUnit;
 import java.util.Date;
 import java.util.List;
 import java.util.stream.Collectors;
@ -28,8 +26,8 @@ public class DeadlineService {
    }

    @Transactional
-    private Deadline update(Deadline deadline) {
-        Deadline updateDeadline = deadlineRepository.getOne(deadline.getId());
+    public Deadline update(Deadline deadline) {
+        Deadline updateDeadline = deadlineRepository.findOne(deadline.getId());
        updateDeadline.setDate(deadline.getDate());
        updateDeadline.setDescription(deadline.getDescription());
        updateDeadline.setExecutors(deadline.getExecutors());
@ -49,33 +47,12 @@ public class DeadlineService {
        return newDeadline;
    }

-    public Deadline create(Date date) {
-        Deadline deadline = new Deadline();
-        deadline.setDate(date);
-        return create(deadline);
-    }
-
-    public Deadline create(String description, Date date) {
-        Deadline deadline = new Deadline();
-        deadline.setDate(date);
-        deadline.setDescription(description);
-        return create(deadline);
-    }
-
    @Transactional
    public void remove(Integer deadlineId) {
-        deadlineRepository.deleteById(deadlineId);
+        deadlineRepository.delete(deadlineId);
    }

    public Date findByGrantIdAndDate(Integer id, Date date) {
        return deadlineRepository.findByGrantIdAndDate(id, date);
    }
-
-    public Deadline createWithOffset(Date date, long value, ChronoUnit chronoUnit) {
-        return create(DateUtils.localDateToDate(DateUtils.convertToLocalDate(date).plus(value, chronoUnit)));
-    }
-
-    public void delete(List<Deadline> deadlines) {
-        deadlineRepository.deleteInBatch(deadlines);
-    }
 }
--- a/src/main/java/ru/ulstu/file/FileController.java
+++ b/src/main/java/ru/ulstu/file/FileController.java
@ -21,10 +21,13 @@ import java.io.UnsupportedEncodingException;
 import java.net.URLEncoder;

 import static java.nio.charset.StandardCharsets.UTF_8;
+import static ru.ulstu.file.FileController.URL;

@RestController
-@RequestMapping(Constants.API_1_0 + "files")
+@RequestMapping(URL)
 public class FileController {
+    public static final String URL = Constants.API_1_0 + "files";
+
    private final FileService fileService;

    public FileController(FileService fileService) {
@ -50,6 +53,6 @@ public class FileController {

    @PostMapping("/uploadTmpFile")
    public Response<FileDataDto> upload(@RequestParam("file") MultipartFile multipartFile) throws IOException {
-        return new Response<>(fileService.createFromMultipartFile(multipartFile));
+        return new Response(fileService.createFromMultipartFile(multipartFile));
    }
 }
--- a/src/main/java/ru/ulstu/file/model/FileData.java
+++ b/src/main/java/ru/ulstu/file/model/FileData.java
@ -1,10 +1,10 @@
 package ru.ulstu.file.model;

-import jakarta.persistence.Column;
-import jakarta.persistence.Entity;
-import jakarta.persistence.Table;
 import ru.ulstu.core.model.BaseEntity;

+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Table;
 import java.util.Date;

@Entity
--- a/src/main/java/ru/ulstu/file/service/FileService.java
+++ b/src/main/java/ru/ulstu/file/service/FileService.java
@ -27,15 +27,15 @@ public class FileService {
    private final static int META_FILE_NAME_INDEX = 0;
    private final static int META_FILE_SIZE_INDEX = 1;

-    private final String tmpDir;
-    private final FileRepository fileRepository;
+    private String tmpDir;
+    private FileRepository fileRepository;

    public FileService(FileRepository fileRepository) {
        tmpDir = System.getProperty("java.io.tmpdir");
        this.fileRepository = fileRepository;
    }

-    private FileData createFileFromTmp(String tmpFileName) throws IOException {
+    public FileData createFileFromTmp(String tmpFileName) throws IOException {
        FileData fileData = new FileData();
        fileData.setData(getTmpFile(tmpFileName));
        fileData.setSize(getTmpFileSize(tmpFileName));
@ -43,7 +43,7 @@ public class FileService {
        return fileRepository.save(fileData);
    }

-    private String uploadToTmpDir(MultipartFile multipartFile) throws IOException {
+    public String uploadToTmpDir(MultipartFile multipartFile) throws IOException {
        String tmpFileName = String.valueOf(System.currentTimeMillis()) + UUID.randomUUID();
        Files.write(getTmpFilePath(tmpFileName), multipartFile.getBytes());
        String meta = multipartFile.getOriginalFilename() + "\n" + multipartFile.getSize();
@ -56,7 +56,7 @@ public class FileService {
                .split("\n");
    }

-    private long getTmpFileSize(String tmpFileName) throws IOException {
+    public long getTmpFileSize(String tmpFileName) throws IOException {
        return Long.valueOf(getMeta(tmpFileName)[META_FILE_SIZE_INDEX]).longValue();
    }

@ -69,7 +69,7 @@ public class FileService {
    }

    public FileData getFile(Integer fileId) {
-        return fileRepository.getOne(fileId);
+        return fileRepository.findOne(fileId);
    }

    public void deleteTmpFile(String tmpFileName) throws IOException {
@ -97,13 +97,13 @@ public class FileService {
    }

    @Transactional
-    private FileData update(FileDataDto fileDataDto) {
-        FileData file = fileRepository.getOne(fileDataDto.getId());
+    public FileData update(FileDataDto fileDataDto) {
+        FileData file = fileRepository.findOne(fileDataDto.getId());
        return fileRepository.save(copyFromDto(file, fileDataDto));
    }

    @Transactional
-    private FileData create(FileDataDto fileDataDto) throws IOException {
+    public FileData create(FileDataDto fileDataDto) throws IOException {
        FileData newFile = createFileFromTmp(fileDataDto.getTmpFileName());
        copyFromDto(newFile, fileDataDto);
        return fileRepository.save(newFile);
@ -117,7 +117,7 @@ public class FileService {

    @Transactional
    public void delete(Integer fileId) {
-        fileRepository.delete(fileRepository.getOne(fileId));
+        fileRepository.delete(fileRepository.findOne(fileId));
    }

    public FileDataDto createFromMultipartFile(MultipartFile multipartFile) throws IOException {
@ -134,7 +134,7 @@ public class FileService {
                File renamed = getTmpFilePath(fileDataDto.getName()).toFile();
                oldFile.renameTo(renamed);
            } else {
-                Files.write(getTmpFilePath(fileDataDto.getName()), fileRepository.getOne(fileDataDto.getId()).getData());
+                Files.write(getTmpFilePath(fileDataDto.getName()), fileRepository.findOne(fileDataDto.getId()).getData());
            }
        }
    }
--- a/src/main/java/ru/ulstu/grant/controller/GrantController.java
+++ b/src/main/java/ru/ulstu/grant/controller/GrantController.java
@ -1,7 +1,5 @@
 package ru.ulstu.grant.controller;

-import io.swagger.v3.oas.annotations.Hidden;
-import jakarta.validation.Valid;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.ModelMap;
 import org.springframework.validation.Errors;
@ -18,7 +16,9 @@ import ru.ulstu.grant.model.GrantDto;
 import ru.ulstu.grant.service.GrantService;
 import ru.ulstu.paper.model.PaperDto;
 import ru.ulstu.user.model.User;
+import springfox.documentation.annotations.ApiIgnore;

+import javax.validation.Valid;
 import java.io.IOException;
 import java.util.List;

@ -29,7 +29,7 @@ import static ru.ulstu.core.controller.Navigation.REDIRECT_TO;

@Controller()
@RequestMapping(value = "/grants")
-@Hidden
+@ApiIgnore
 public class GrantController {
    private final GrantService grantService;

--- a/src/main/java/ru/ulstu/grant/model/Grant.java
+++ b/src/main/java/ru/ulstu/grant/model/Grant.java
@ -1,22 +1,8 @@
 package ru.ulstu.grant.model;

-import jakarta.persistence.CascadeType;
-import jakarta.persistence.DiscriminatorValue;
-import jakarta.persistence.Entity;
-import jakarta.persistence.EnumType;
-import jakarta.persistence.Enumerated;
-import jakarta.persistence.FetchType;
-import jakarta.persistence.JoinColumn;
-import jakarta.persistence.JoinTable;
-import jakarta.persistence.ManyToMany;
-import jakarta.persistence.ManyToOne;
-import jakarta.persistence.OneToMany;
-import jakarta.persistence.OrderBy;
-import jakarta.persistence.Table;
-import jakarta.validation.constraints.NotBlank;
-import jakarta.validation.constraints.NotNull;
 import org.hibernate.annotations.Fetch;
 import org.hibernate.annotations.FetchMode;
+import org.hibernate.validator.constraints.NotBlank;
 import ru.ulstu.core.model.BaseEntity;
 import ru.ulstu.core.model.EventSource;
 import ru.ulstu.core.model.UserActivity;
@ -27,6 +13,20 @@ import ru.ulstu.project.model.Project;
 import ru.ulstu.timeline.model.Event;
 import ru.ulstu.user.model.User;

+import javax.persistence.CascadeType;
+import javax.persistence.DiscriminatorValue;
+import javax.persistence.Entity;
+import javax.persistence.EnumType;
+import javax.persistence.Enumerated;
+import javax.persistence.FetchType;
+import javax.persistence.JoinColumn;
+import javax.persistence.JoinTable;
+import javax.persistence.ManyToMany;
+import javax.persistence.ManyToOne;
+import javax.persistence.OneToMany;
+import javax.persistence.OrderBy;
+import javax.persistence.Table;
+import javax.validation.constraints.NotNull;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Comparator;
@ -41,30 +41,24 @@ import java.util.Set;
@DiscriminatorValue("GRANT")
 public class Grant extends BaseEntity implements UserActivity, EventSource {
    public enum GrantStatus {
-        APPLICATION("Заявка", "text-draft"),
-        ON_COMPETITION("Отправлен на конкурс", "text-review"),
-        SUCCESSFUL_PASSAGE("Успешное прохождение", "text-accepted"),
-        IN_WORK("В работе", "text-primary"),
-        COMPLETED("Завершен", "text-success"),
-        FAILED("Провалены сроки", "text-failed"),
-        LOADED_FROM_KIAS("Загружен автоматически", "text-warning"),
-        SKIPPED("Не интересует", "text-not-accepted");
+        APPLICATION("Заявка"),
+        ON_COMPETITION("Отправлен на конкурс"),
+        SUCCESSFUL_PASSAGE("Успешное прохождение"),
+        IN_WORK("В работе"),
+        COMPLETED("Завершен"),
+        FAILED("Провалены сроки"),
+        LOADED_FROM_KIAS("Загружен автоматически"),
+        SKIPPED("Не интересует");

-        private final String statusName;
-        private final String elementClass;
+        private String statusName;

-        GrantStatus(String statusName, String elementClass) {
+        GrantStatus(String statusName) {
            this.statusName = statusName;
-            this.elementClass = elementClass;
        }

        public String getStatusName() {
            return statusName;
        }
-
-        public String getElementClass() {
-            return elementClass;
-        }
    }

    @NotBlank
--- a/src/main/java/ru/ulstu/grant/model/GrantDto.java
+++ b/src/main/java/ru/ulstu/grant/model/GrantDto.java
@ -2,8 +2,8 @@ package ru.ulstu.grant.model;

 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
-import jakarta.validation.constraints.NotEmpty;
 import org.apache.commons.lang3.StringUtils;
+import org.hibernate.validator.constraints.NotEmpty;
 import ru.ulstu.deadline.model.Deadline;
 import ru.ulstu.file.model.FileDataDto;
 import ru.ulstu.name.NameContainer;
--- a/src/main/java/ru/ulstu/grant/repository/GrantRepository.java
+++ b/src/main/java/ru/ulstu/grant/repository/GrantRepository.java
@ -12,13 +12,13 @@ public interface GrantRepository extends JpaRepository<Grant, Integer>, BaseRepo

    List<Grant> findByStatus(Grant.GrantStatus status);

-    Grant findFirstByTitle(String title);
+    Grant findByTitle(String title);

    Grant findGrantById(Integer grantId);

    @Override
    @Query("SELECT title FROM Grant g WHERE (g.title = :name) AND (:id IS NULL OR g.id != :id) ")
-    List<String> findByNameAndNotId(@Param("name") String name, @Param("id") Integer id);
+    String findByNameAndNotId(@Param("name") String name, @Param("id") Integer id);

    @Query("SELECT g FROM Grant g WHERE (g.status <> 'SKIPPED') AND (g.status <> 'COMPLETED')")
    List<Grant> findAllActive();
--- a/src/main/java/ru/ulstu/grant/service/GrantNotificationService.java
+++ b/src/main/java/ru/ulstu/grant/service/GrantNotificationService.java
@ -1,5 +1,6 @@
 package ru.ulstu.grant.service;

+import com.google.common.collect.ImmutableMap;
 import org.springframework.stereotype.Service;
 import ru.ulstu.core.util.DateUtils;
 import ru.ulstu.grant.model.Grant;
@ -45,22 +46,22 @@ public class GrantNotificationService {
    }

    private void sendMessageDeadline(Grant grant) {
-        Map<String, Object> variables = Map.of("grant", grant);
+        Map<String, Object> variables = ImmutableMap.of("grant", grant);
        sendForAllAuthors(variables, grant, TEMPLATE_DEADLINE, String.format(TITLE_DEADLINE, grant.getTitle()));
    }

    public void sendCreateNotification(Grant grant) {
-        Map<String, Object> variables = Map.of("grant", grant);
+        Map<String, Object> variables = ImmutableMap.of("grant", grant);
        sendForAllAuthors(variables, grant, TEMPLATE_CREATE, String.format(TITLE_CREATE, grant.getTitle()));
    }

    public void sendAuthorsChangeNotification(Grant grant, Set<User> oldAuthors) {
-        Map<String, Object> variables = Map.of("grant", grant, "oldAuthors", oldAuthors);
+        Map<String, Object> variables = ImmutableMap.of("grant", grant, "oldAuthors", oldAuthors);
        sendForAllAuthors(variables, grant, TEMPLATE_AUTHORS_CHANGED, String.format(TITLE_AUTHORS_CHANGED, grant.getTitle()));
    }

    public void sendLeaderChangeNotification(Grant grant, User oldLeader) {
-        Map<String, Object> variables = Map.of("grant", grant, "oldLeader", oldLeader);
+        Map<String, Object> variables = ImmutableMap.of("grant", grant, "oldLeader", oldLeader);
        sendForAllAuthors(variables, grant, TEMPLATE_LEADER_CHANGED, String.format(TITLE_LEADER_CHANGED, grant.getTitle()));
    }

--- a/src/main/java/ru/ulstu/grant/service/GrantScheduler.java
+++ b/src/main/java/ru/ulstu/grant/service/GrantScheduler.java
@ -5,6 +5,9 @@ import org.slf4j.LoggerFactory;
 import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Service;

+import java.io.IOException;
+import java.text.ParseException;
+
@Service
 public class GrantScheduler {
    private final static boolean IS_DEADLINE_NOTIFICATION_BEFORE_WEEK = true;
@ -31,11 +34,11 @@ public class GrantScheduler {
    @Scheduled(cron = "0 0 8 * * ?", zone = "Europe/Samara")
    public void loadGrantsFromKias() {
        log.debug("GrantScheduler.loadGrantsFromKias started");
-//        try {
-//            grantService.createFromKias();
-//        } catch (ParseException | IOException e) {
-//            e.printStackTrace();
-//        }
+        try {
+            grantService.createFromKias();
+        } catch (ParseException | IOException e) {
+            e.printStackTrace();
+        }
        log.debug("GrantScheduler.loadGrantsFromKias finished");
    }
 }
--- a/src/main/java/ru/ulstu/grant/service/GrantService.java
+++ b/src/main/java/ru/ulstu/grant/service/GrantService.java
@ -27,7 +27,6 @@ import ru.ulstu.user.service.UserService;

 import java.io.IOException;
 import java.text.ParseException;
-import java.time.temporal.ChronoUnit;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.Date;
@ -80,7 +79,8 @@ public class GrantService extends BaseService {
    }

    public GrantDto getExistGrantById(Integer id) {
-        return new GrantDto(findById(id));
+        GrantDto grantDto = new GrantDto(findById(id));
+        return grantDto;
    }

    public List<Grant> findAll() {
@ -134,7 +134,7 @@ public class GrantService extends BaseService {
    }

    @Transactional
-    private Integer update(GrantDto grantDto) throws IOException {
+    public Integer update(GrantDto grantDto) throws IOException {
        Grant grant = findById(grantDto.getId());
        Set<User> oldAuthors = new HashSet<>(grant.getAuthors());
        User oldLeader = grant.getLeader();
@ -182,7 +182,7 @@ public class GrantService extends BaseService {
        filterEmptyDeadlines(grantDto);
        checkEmptyDeadlines(grantDto, errors);
        checkEmptyLeader(grantDto, errors);
-        checkUniqueName(grantDto, errors, grantDto.getId(), "Грант с таким именем уже существует");
+        checkUniqueName(grantDto, errors, grantDto.getId(), "title", "Грант с таким именем уже существует");
        if (errors.hasErrors()) {
            return false;
        }
@ -194,11 +194,11 @@ public class GrantService extends BaseService {
        return true;
    }

-    private boolean saveFromKias(GrantDto grantDto) throws IOException {
+    public boolean saveFromKias(GrantDto grantDto) throws IOException {
        grantDto.setName(grantDto.getTitle());
        String title = checkUniqueName(grantDto, grantDto.getId()); //проверка уникальности имени
        if (title != null) {
-            Grant grantFromDB = grantRepository.findFirstByTitle(title); //грант с таким же названием из бд
+            Grant grantFromDB = grantRepository.findByTitle(title); //грант с таким же названием из бд
            if (checkSameDeadline(grantDto, grantFromDB.getId())) { //если дедайны тоже совпадают
                return false;
            } else { //иначе грант уже был в системе, но в другом году, поэтому надо создать
@ -332,72 +332,11 @@ public class GrantService extends BaseService {
    }

    public Grant findById(Integer id) {
-        return grantRepository.getOne(id);
+        return grantRepository.findOne(id);
    }

    @Transactional
    public void ping(int grantId) throws IOException {
        pingService.addPing(findById(grantId));
    }
-
-    public void save(Grant grant) {
-        if (isEmpty(grant.getId())) {
-            create(grant);
-        } else {
-            update(grant);
-        }
-    }
-
-    @Transactional
-    public Grant create(Grant grant) {
-        Grant newGrant = grantRepository.save(grant);
-        grantNotificationService.sendCreateNotification(newGrant);
-        return newGrant;
-    }
-
-    @Transactional
-    public Integer update(Grant newGrant) {
-        Grant oldGrant = grantRepository.getOne(newGrant.getId());
-        //Grant.GrantStatus oldStatus = oldGrant.getStatus();
-        Set<User> oldAuthors = new HashSet<>(oldGrant.getAuthors());
-        newGrant = grantRepository.save(newGrant);
-        for (User author : newGrant.getAuthors()) {
-            if (!oldAuthors.contains(author)) {
-                grantNotificationService.sendCreateNotification(newGrant);
-            }
-        }
-
-//        if (newGrant.getStatus() != oldStatus) {
-//            grantNotificationService.statusChangeNotification(newPaper, oldStatus);
-//        }
-
-        return newGrant.getId();
-    }
-
-    public void createByTitle(String newGrantTitle) {
-        Grant grant = new Grant();
-        grant.setTitle(newGrantTitle);
-        grant.setStatus(APPLICATION);
-        grant.getAuthors().add(userService.getCurrentUser());
-        grant.setLeader(userService.getCurrentUser());
-        grant.getDeadlines().add(deadlineService.createWithOffset(new Date(), 1, ChronoUnit.WEEKS));
-        create(grant);
-    }
-
-    public List<Grant> findAllActiveByCurrentUser() {
-        return findAllActive()
-                .stream()
-                .filter(grant -> grant.getAuthors().contains(userService.getCurrentUser()) ||
-                        grant.getLeader().equals(userService.getCurrentUser()))
-                .collect(toList());
-    }
-
-    public void delete(List<Grant> grants) {
-        grants.forEach(grant -> delete(grant));
-    }
-
-    public void delete(Grant grant) {
-        deadlineService.delete(grant.getDeadlines());
-        grantRepository.delete(grant);
-    }
 }
--- a/src/main/java/ru/ulstu/grant/service/KiasService.java
+++ b/src/main/java/ru/ulstu/grant/service/KiasService.java
@ -23,18 +23,18 @@ public class KiasService {
    private final static String CONTEST_TYPE = "-1";

    private final UserService userService;
+    private final ApplicationProperties applicationProperties;

    public KiasService(UserService userService,
                       ApplicationProperties applicationProperties) {
        this.userService = userService;
+        this.applicationProperties = applicationProperties;
    }

    public List<GrantDto> getNewGrantsDto() throws ParseException, IOException {
        Integer leaderId = userService.findOneByLoginIgnoreCase("admin").getId();
        List<GrantDto> grants = new ArrayList<>();
-        try (WebClient webClient = new WebClient()) {
-            webClient.setJavaScriptTimeout(60 * 1000);
-            webClient.getOptions().setThrowExceptionOnScriptError(false);
+        try (final WebClient webClient = new WebClient()) {
            for (Integer year : generateGrantYears()) {
                final HtmlPage page = webClient.getPage(String.format(BASE_URL, CONTEST_STATUS_ID, CONTEST_TYPE, year));
                grants.addAll(getKiasGrants(page));
@ -44,7 +44,7 @@ public class KiasService {
        return grants;
    }

-    private List<GrantDto> getKiasGrants(HtmlPage page) throws ParseException {
+    public List<GrantDto> getKiasGrants(HtmlPage page) throws ParseException {
        List<GrantDto> newGrants = new ArrayList<>();
        KiasPage kiasPage = new KiasPage(page);
        do {
--- a/src/main/java/ru/ulstu/index/controller/IndexController.java
+++ b/src/main/java/ru/ulstu/index/controller/IndexController.java
@ -1,16 +1,16 @@
 package ru.ulstu.index.controller;

-import io.swagger.v3.oas.annotations.Hidden;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.ModelMap;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import ru.ulstu.core.controller.AdviceController;
 import ru.ulstu.user.service.UserService;
+import springfox.documentation.annotations.ApiIgnore;

@Controller()
@RequestMapping(value = "/index")
-@Hidden
+@ApiIgnore
 public class IndexController extends AdviceController {
    public IndexController(UserService userService) {
        super(userService);
--- a/src/main/java/ru/ulstu/index/model/Section.java
+++ b/src/main/java/ru/ulstu/index/model/Section.java
@ -1,25 +0,0 @@
-package ru.ulstu.index.model;
-
-public class Section {
-    private final String title;
-    private final String image;
-    private final String href;
-
-    public Section(String title, String href, String image) {
-        this.title = title;
-        this.image = image;
-        this.href = href;
-    }
-
-    public String getTitle() {
-        return title;
-    }
-
-    public String getImage() {
-        return image;
-    }
-
-    public String getHref() {
-        return href;
-    }
-}
--- a/src/main/java/ru/ulstu/name/BaseRepository.java
+++ b/src/main/java/ru/ulstu/name/BaseRepository.java
@ -2,8 +2,6 @@ package ru.ulstu.name;

 import org.springframework.data.repository.query.Param;

-import java.util.List;
-
 public interface BaseRepository {
-    List<String> findByNameAndNotId(@Param("name") String name, @Param("id") Integer id);
+    String findByNameAndNotId(@Param("name") String name, @Param("id") Integer id);
 }
--- a/src/main/java/ru/ulstu/name/BaseService.java
+++ b/src/main/java/ru/ulstu/name/BaseService.java
@ -3,34 +3,21 @@ package ru.ulstu.name;
 import org.springframework.stereotype.Service;
 import org.springframework.validation.Errors;

-import java.util.ArrayList;
-import java.util.List;
-import java.util.Optional;
-
@Service
 public abstract class BaseService {

    public BaseRepository baseRepository;

-    protected void checkUniqueName(NameContainer nameContainer, Errors errors, Integer id, String errorMessage) {
-        if (nameContainer.getName().equals(getUnique(baseRepository.findByNameAndNotId(nameContainer.getName(), id)))) {
-            errors.rejectValue("title", "errorCode", errorMessage);
+    public void checkUniqueName(NameContainer nameContainer, Errors errors, Integer id, String checkField, String errorMessage) {
+        if (nameContainer.getName().equals(baseRepository.findByNameAndNotId(nameContainer.getName(), id))) {
+            errors.rejectValue(checkField, "errorCode", errorMessage);
        }
    }

-    protected String checkUniqueName(NameContainer nameContainer, Integer id) {
-        String foundName = getUnique(baseRepository.findByNameAndNotId(nameContainer.getName(), id));
-        if (nameContainer.getName().equals(foundName)) {
-            return foundName;
+    public String checkUniqueName(NameContainer nameContainer, Integer id) {
+        if (nameContainer.getName().equals(baseRepository.findByNameAndNotId(nameContainer.getName(), id))) {
+            return baseRepository.findByNameAndNotId(nameContainer.getName(), id);
        }
        return null;
    }
-
-    private String getUnique(List<String> names) {
-        return Optional.ofNullable(names)
-                .orElse(new ArrayList<>())
-                .stream()
-                .findAny()
-                .orElse(null);
-    }
 }
--- a/src/main/java/ru/ulstu/odin/controller/OdinController.java
+++ b/src/main/java/ru/ulstu/odin/controller/OdinController.java
@ -9,10 +9,10 @@ import ru.ulstu.odin.service.OdinService;

 public abstract class OdinController<L, E extends OdinDto> {
    public static final String META_LIST_URL = "/meta/list";
-    private static final String META_ELEMENT_URL = "/meta/element";
+    public static final String META_ELEMENT_URL = "/meta/element";

-    private final Class<L> listDtoClass;
-    private final Class<E> elementDtoClass;
+    private Class<L> listDtoClass;
+    private Class<E> elementDtoClass;
    @Autowired
    private OdinService<L, E> odinService;

--- a/src/main/java/ru/ulstu/odin/model/OdinCollectionField.java
+++ b/src/main/java/ru/ulstu/odin/model/OdinCollectionField.java
@ -3,7 +3,6 @@ package ru.ulstu.odin.model;
 import ru.ulstu.core.error.OdinException;

 import java.lang.reflect.Field;
-import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.ParameterizedType;
 import java.lang.reflect.Type;

@ -15,9 +14,9 @@ public class OdinCollectionField extends OdinField {
        ParameterizedType genericType = (ParameterizedType) field.getGenericType();
        Type fieldElementClass = genericType.getActualTypeArguments()[0];
        try {
-            OdinDto someInstance = (OdinDto) ((Class) (fieldElementClass)).getDeclaredConstructor().newInstance();
+            OdinDto someInstance = (OdinDto) ((Class) (fieldElementClass)).newInstance();
            this.path = someInstance.getControllerPath();
-        } catch (IllegalAccessException | InstantiationException | NoSuchMethodException | InvocationTargetException e) {
+        } catch (IllegalAccessException | InstantiationException e) {
            throw new OdinException(String.format("Can't create new instance, check default constructor of %s",
                    fieldElementClass.getTypeName()));
        }
--- a/src/main/java/ru/ulstu/odin/model/OdinField.java
+++ b/src/main/java/ru/ulstu/odin/model/OdinField.java
@ -1,14 +1,14 @@
 package ru.ulstu.odin.model;

 import com.fasterxml.jackson.annotation.JsonProperty;
-import jakarta.validation.constraints.NotBlank;
-import jakarta.validation.constraints.NotEmpty;
-import jakarta.validation.constraints.NotNull;
+import org.hibernate.validator.constraints.NotBlank;
+import org.hibernate.validator.constraints.NotEmpty;
 import ru.ulstu.core.error.OdinException;
 import ru.ulstu.odin.model.annotation.OdinCaption;
 import ru.ulstu.odin.model.annotation.OdinReadOnly;
 import ru.ulstu.odin.model.annotation.OdinVisible;

+import javax.validation.constraints.NotNull;
 import java.lang.annotation.Annotation;
 import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
@ -31,16 +31,15 @@ public abstract class OdinField implements Comparable {
            return this.name().toLowerCase();
        }
    }
+    protected final OdinFieldType fieldType;
+    protected final String fieldName;
+    protected final String caption;
+    protected final OdinVisible.OdinVisibleType visible;
+    protected final boolean readOnly;
+    protected final boolean notEmpty;
+    private Field field;

-    private final OdinFieldType fieldType;
-    private final String fieldName;
-    private final String caption;
-    private final OdinVisible.OdinVisibleType visible;
-    private final boolean readOnly;
-    private final boolean notEmpty;
-    private final Field field;
-
-    OdinField(Field field, OdinFieldType fieldType) {
+    public OdinField(Field field, OdinFieldType fieldType) {
        this.field = field;
        this.fieldName = getFieldName(field);
        this.caption = Optional.ofNullable(getValueFromAnnotation(OdinCaption.class, "value"))
@ -93,7 +92,7 @@ public abstract class OdinField implements Comparable {
        }
    }

-    <T> T getValue(Class<? extends Annotation> annotationClass, String valueName, Class<T> clazz) {
+    protected <T> T getValue(Class<? extends Annotation> annotationClass, String valueName, Class<T> clazz) {
        if (field.isAnnotationPresent(annotationClass)) {
            return cast(getValueFromAnnotation(annotationClass, valueName), clazz);
        }
--- a/src/main/java/ru/ulstu/odin/model/OdinObjectField.java
+++ b/src/main/java/ru/ulstu/odin/model/OdinObjectField.java
@ -3,7 +3,6 @@ package ru.ulstu.odin.model;
 import ru.ulstu.core.error.OdinException;

 import java.lang.reflect.Field;
-import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Type;

 public class OdinObjectField extends OdinField {
@ -13,9 +12,9 @@ public class OdinObjectField extends OdinField {
        super(field, OdinFieldType.OBJECT);
        Type fieldElementClass = field.getType();
        try {
-            OdinDto someInstance = (OdinDto) ((Class) (fieldElementClass)).getDeclaredConstructor().newInstance();
+            OdinDto someInstance = (OdinDto) ((Class) (fieldElementClass)).newInstance();
            this.path = someInstance.getControllerPath();
-        } catch (IllegalAccessException | InstantiationException | NoSuchMethodException | InvocationTargetException e) {
+        } catch (IllegalAccessException | InstantiationException e) {
            throw new OdinException(String.format("Can't create new instance, check default constructor of %s",
                    fieldElementClass.getTypeName()));
        }
--- a/src/main/java/ru/ulstu/odin/model/OdinStringField.java
+++ b/src/main/java/ru/ulstu/odin/model/OdinStringField.java
@ -1,10 +1,10 @@
 package ru.ulstu.odin.model;

-import jakarta.validation.constraints.Email;
-import jakarta.validation.constraints.Size;
+import org.hibernate.validator.constraints.Email;
 import ru.ulstu.odin.model.annotation.OdinString;
 import ru.ulstu.odin.model.annotation.OdinString.OdinStringType;

+import javax.validation.constraints.Size;
 import java.lang.reflect.Field;

 import static ru.ulstu.odin.model.annotation.OdinString.OdinStringType.EMAIL;
--- a/src/main/java/ru/ulstu/odinexample/controller/OdinExampleController.java
+++ b/src/main/java/ru/ulstu/odinexample/controller/OdinExampleController.java
@ -0,0 +1,4 @@
+package ru.ulstu.odinexample.controller;
+
+public class OdinExampleController {
+}
--- a/src/main/java/ru/ulstu/odinexample/model/OdinExampleDto.java
+++ b/src/main/java/ru/ulstu/odinexample/model/OdinExampleDto.java
@ -0,0 +1,4 @@
+package ru.ulstu.odinexample.model;
+
+public class OdinExampleDto {
+}
--- a/src/main/java/ru/ulstu/odinexample/model/OdinExampleListDto.java
+++ b/src/main/java/ru/ulstu/odinexample/model/OdinExampleListDto.java
@ -0,0 +1,103 @@
+package ru.ulstu.odinexample.model;
+
+import ru.ulstu.core.util.DateUtils;
+import ru.ulstu.odin.model.annotation.OdinCaption;
+import ru.ulstu.odin.model.annotation.OdinDate;
+import ru.ulstu.odin.model.annotation.OdinNumeric;
+
+import java.time.Instant;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.LocalTime;
+import java.util.Date;
+
+public class OdinExampleListDto {
+    @OdinCaption("instant")
+    @OdinDate(type = OdinDate.OdinDateType.DATETIME)
+    private Instant instant;
+    @OdinCaption("date")
+    private Date date;
+    @OdinCaption("localdate")
+    private LocalDate localDate;
+    @OdinCaption("localtime")
+    @OdinDate(type = OdinDate.OdinDateType.TIME)
+    private LocalTime localTime;
+    @OdinCaption("localdatetime")
+    @OdinDate(type = OdinDate.OdinDateType.DATETIME)
+    private LocalDateTime localDateTime;
+    @OdinCaption("int")
+    private int intval;
+    @OdinCaption("int+settings")
+    @OdinNumeric(precision = 5, scale = 2)
+    private int intvalset;
+    @OdinCaption("float")
+    private float floatval;
+    @OdinCaption("double")
+    private double aDouble;
+    @OdinCaption("double+set")
+    @OdinNumeric(precision = 5, scale = 3)
+    private double aDoubles;
+    @OdinCaption("int+positive")
+    @OdinNumeric(positiveOnly = true, scale = 2)
+    private int invalpos;
+
+    public OdinExampleListDto() {
+        this.instant = Instant.now();
+        this.date = new Date();
+        this.localDate = LocalDate.now();
+        this.localTime = LocalTime.now();
+        this.localDateTime = LocalDateTime.now();
+        intval = -134;
+        intvalset = 1343423232;
+        floatval = 2323.44F;
+        aDouble = -232323.43434;
+        aDoubles = 0.456456456;
+        invalpos = -23232323;
+    }
+
+
+    public Date getInstant() {
+        return DateUtils.instantToDate(instant);
+    }
+
+    public Date getDate() {
+        return date;
+    }
+
+    public Date getLocalDate() {
+        return DateUtils.localDateToDate(localDate);
+    }
+
+    public Date getLocalTime() {
+        return DateUtils.localTimeToDate(localTime);
+    }
+
+    public Date getLocalDateTime() {
+        return DateUtils.localDateTimeToDate(localDateTime);
+    }
+
+    public int getIntval() {
+        return intval;
+    }
+
+    public int getIntvalset() {
+        return intvalset;
+    }
+
+    public float getFloatval() {
+        return floatval;
+    }
+
+    public double getaDouble() {
+        return aDouble;
+    }
+
+    public double getaDoubles() {
+        return aDoubles;
+    }
+
+    public int getInvalpos() {
+        return invalpos;
+    }
+
+}
--- a/src/main/java/ru/ulstu/odinexample/service/OdinExampleService.java
+++ b/src/main/java/ru/ulstu/odinexample/service/OdinExampleService.java
@ -0,0 +1,4 @@
+package ru.ulstu.odinexample.service;
+
+public class OdinExampleService {
+}
--- a/src/main/java/ru/ulstu/paper/controller/PaperController.java
+++ b/src/main/java/ru/ulstu/paper/controller/PaperController.java
@ -1,7 +1,8 @@
 package ru.ulstu.paper.controller;

-import io.swagger.v3.oas.annotations.Hidden;
-import jakarta.validation.Valid;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.ModelMap;
 import org.springframework.validation.Errors;
@ -16,20 +17,27 @@ import ru.ulstu.paper.model.AutoCompleteData;
 import ru.ulstu.paper.model.Paper;
 import ru.ulstu.paper.model.PaperDto;
 import ru.ulstu.paper.model.PaperListDto;
+import ru.ulstu.paper.model.ReferenceDto;
 import ru.ulstu.paper.service.LatexService;
 import ru.ulstu.paper.service.PaperService;
 import ru.ulstu.user.model.User;
+import springfox.documentation.annotations.ApiIgnore;

+import javax.validation.Valid;
 import java.io.IOException;
+import java.net.URLEncoder;
 import java.util.ArrayList;
 import java.util.Calendar;
 import java.util.List;
 import java.util.stream.Collectors;

+import static java.nio.charset.StandardCharsets.UTF_8;
+import static org.springframework.util.StringUtils.isEmpty;
+

@Controller()
@RequestMapping(value = "/papers")
-@Hidden
+@ApiIgnore
 public class PaperController {
    private final PaperService paperService;
    private final ConferenceService conferenceService;
@ -68,7 +76,7 @@ public class PaperController {
    }

    @GetMapping("/paper")
-    public void getPaper(ModelMap modelMap, @RequestParam(value = "id") Integer id) {
+    public void getPapers(ModelMap modelMap, @RequestParam(value = "id") Integer id) {
        if (id != null && id > 0) {
            modelMap.put("paperDto", paperService.findOneDto(id));
        } else {
@ -99,6 +107,15 @@ public class PaperController {
        return "/papers/paper";
    }

+    @PostMapping(value = "/paper", params = "addReference")
+    public String addReference(@Valid PaperDto paperDto, Errors errors) {
+        if (errors.hasErrors()) {
+            return "/papers/paper";
+        }
+        paperDto.getReferences().add(new ReferenceDto());
+        return "/papers/paper";
+    }
+
    @ModelAttribute("allStatuses")
    public List<Paper.PaperStatus> getPaperStatuses() {
        return paperService.getPaperStatuses();
@ -123,6 +140,29 @@ public class PaperController {
        return years;
    }

+    @ModelAttribute("allFormatStandards")
+    public List<ReferenceDto.FormatStandard> getFormatStandards() {
+        return paperService.getFormatStandards();
+    }
+
+    @ModelAttribute("allReferenceTypes")
+    public List<ReferenceDto.ReferenceType> getReferenceTypes() {
+        return paperService.getReferenceTypes();
+    }
+
+    @PostMapping("/generatePdf")
+    public ResponseEntity<byte[]> getPdfFile(PaperDto paper) throws IOException, InterruptedException {
+        HttpHeaders headers = new HttpHeaders();
+        headers.add("Content-Disposition", "attachment; filename='" +
+                URLEncoder.encode(paper.getTitle() + ".pdf", UTF_8.toString()) + "'");
+        return new ResponseEntity<>(latexService.generatePdfFromLatexFile(paper), headers, HttpStatus.OK);
+    }
+
+    @PostMapping("/getFormattedReferences")
+    public ResponseEntity<String> getFormattedReferences(PaperDto paperDto) {
+        return new ResponseEntity<>(paperService.getFormattedReferences(paperDto), new HttpHeaders(), HttpStatus.OK);
+    }
+
    @ModelAttribute("autocompleteData")
    public AutoCompleteData getAutocompleteData() {
        return paperService.getAutoCompleteData();
@ -130,7 +170,7 @@ public class PaperController {

    private void filterEmptyDeadlines(PaperDto paperDto) {
        paperDto.setDeadlines(paperDto.getDeadlines().stream()
-                .filter(dto -> dto.getDate() != null || !dto.getDescription().isEmpty())
+                .filter(dto -> dto.getDate() != null || !isEmpty(dto.getDescription()))
                .collect(Collectors.toList()));
    }
 }
--- a/src/main/java/ru/ulstu/paper/controller/PaperRestController.java
+++ b/src/main/java/ru/ulstu/paper/controller/PaperRestController.java
@ -1,6 +1,5 @@
 package ru.ulstu.paper.controller;

-import jakarta.validation.Valid;
 import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
@ -17,6 +16,7 @@ import ru.ulstu.paper.model.PaperListDto;
 import ru.ulstu.paper.model.ReferenceDto;
 import ru.ulstu.paper.service.PaperService;

+import javax.validation.Valid;
 import java.io.IOException;
 import java.util.List;

@ -40,7 +40,7 @@ public class PaperRestController {

    @GetMapping("/{paper-id}")
    public Response<PaperDto> getPaper(@PathVariable("paper-id") Integer paperId) {
-        return new Response<>(paperService.findById(paperId));
+        return new Response(paperService.findById(paperId));
    }

    @PostMapping
@ -56,7 +56,7 @@ public class PaperRestController {
    @DeleteMapping("/{paper-id}")
    public Response<Boolean> delete(@PathVariable("paper-id") Integer paperId) throws IOException {
        paperService.delete(paperId);
-        return new Response<>(Boolean.TRUE);
+        return new Response<>(true);
    }

    @PostMapping("/filter")
--- a/src/main/java/ru/ulstu/paper/error/PaperConferenceRelationExistException.java
+++ b/src/main/java/ru/ulstu/paper/error/PaperConferenceRelationExistException.java
@ -0,0 +1,7 @@
+package ru.ulstu.paper.error;
+
+public class PaperConferenceRelationExistException extends RuntimeException {
+    public PaperConferenceRelationExistException(String message) {
+        super(message);
+    }
+}
--- a/src/main/java/ru/ulstu/paper/model/Paper.java
+++ b/src/main/java/ru/ulstu/paper/model/Paper.java
@ -1,23 +1,8 @@
 package ru.ulstu.paper.model;

-import jakarta.persistence.CascadeType;
-import jakarta.persistence.Column;
-import jakarta.persistence.DiscriminatorValue;
-import jakarta.persistence.Entity;
-import jakarta.persistence.EnumType;
-import jakarta.persistence.Enumerated;
-import jakarta.persistence.FetchType;
-import jakarta.persistence.JoinColumn;
-import jakarta.persistence.ManyToMany;
-import jakarta.persistence.ManyToOne;
-import jakarta.persistence.OneToMany;
-import jakarta.persistence.OrderBy;
-import jakarta.persistence.Temporal;
-import jakarta.persistence.TemporalType;
-import jakarta.validation.constraints.NotBlank;
 import org.hibernate.annotations.Fetch;
 import org.hibernate.annotations.FetchMode;
-import org.springframework.format.annotation.DateTimeFormat;
+import org.hibernate.validator.constraints.NotBlank;
 import ru.ulstu.conference.model.Conference;
 import ru.ulstu.core.model.BaseEntity;
 import ru.ulstu.core.model.EventSource;
@ -28,6 +13,19 @@ import ru.ulstu.grant.model.Grant;
 import ru.ulstu.timeline.model.Event;
 import ru.ulstu.user.model.User;

+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.DiscriminatorValue;
+import javax.persistence.Entity;
+import javax.persistence.EnumType;
+import javax.persistence.Enumerated;
+import javax.persistence.FetchType;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToMany;
+import javax.persistence.OneToMany;
+import javax.persistence.OrderBy;
+import javax.persistence.Temporal;
+import javax.persistence.TemporalType;
 import java.util.ArrayList;
 import java.util.Comparator;
 import java.util.Date;
@ -41,30 +39,24 @@ import java.util.Set;
@DiscriminatorValue("PAPER")
 public class Paper extends BaseEntity implements UserActivity, EventSource {
    public enum PaperStatus {
-        ATTENTION("Обратить внимание", "text-warning"),
-        ON_PREPARATION("На подготовке", "text-primary"),
-        ON_REVIEW("Отправлена на проверку", "text-review"),
-        ACCEPTED("Принята", "text-accepted"),
-        NOT_ACCEPTED("Не принята", "text-not-accepted"),
-        COMPLETED("Завершена (опубликована)", "text-success"),
-        DRAFT("Черновик", "text-draft"),
-        FAILED("Провалены сроки", "text-failed");
+        ATTENTION("Обратить внимание"),
+        ON_PREPARATION("На подготовке"),
+        ON_REVIEW("Отправлена на проверку"),
+        ACCEPTED("Принята"),
+        NOT_ACCEPTED("Не принята"),
+        COMPLETED("Завершена (опубликована)"),
+        DRAFT("Черновик"),
+        FAILED("Провалены сроки");

-        private final String statusName;
-        private final String elementClass;
+        private String statusName;

-        PaperStatus(String name, String elementClass) {
+        PaperStatus(String name) {
            this.statusName = name;
-            this.elementClass = elementClass;
        }

        public String getStatusName() {
            return statusName;
        }
-
-        public String getElementClass() {
-            return elementClass;
-        }
    }

    public enum PaperType {
@ -73,7 +65,7 @@ public class Paper extends BaseEntity implements UserActivity, EventSource {
        SCOPUS("Scopus"),
        WEB_OF_SCIENCE("Web Of Science");

-        private final String typeName;
+        private String typeName;

        PaperType(String name) {
            this.typeName = name;
@ -95,15 +87,13 @@ public class Paper extends BaseEntity implements UserActivity, EventSource {

    @Column(name = "create_date")
    @Temporal(TemporalType.TIMESTAMP)
-    @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss.SSSXXX")
    private Date createDate = new Date();

    @Column(name = "update_date")
    @Temporal(TemporalType.TIMESTAMP)
-    @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss.SSSXXX")
    private Date updateDate = new Date();

-    @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY)
+    @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER)
    @JoinColumn(name = "paper_id", unique = true)
    @Fetch(FetchMode.SUBSELECT)
    @OrderBy("date")
@ -126,9 +116,12 @@ public class Paper extends BaseEntity implements UserActivity, EventSource {

    @ManyToMany(fetch = FetchType.EAGER)
    private Set<User> authors = new HashSet<>();
-    @ManyToOne()
-    @JoinColumn(name = "conference_id")
-    private Conference conference;
+
+    @Column(name = "latex_text")
+    private String latexText;
+
+    @ManyToMany(mappedBy = "papers")
+    private List<Conference> conferences;

    @ManyToMany(mappedBy = "papers")
    private List<Grant> grants;
@ -208,7 +201,7 @@ public class Paper extends BaseEntity implements UserActivity, EventSource {

    @Override
    public List<User> getRecipients() {
-        return new ArrayList<>(authors);
+        return new ArrayList(authors);
    }

    @Override
@ -244,12 +237,20 @@ public class Paper extends BaseEntity implements UserActivity, EventSource {
        this.url = url;
    }

-    public Conference getConference() {
-        return conference;
+    public String getLatexText() {
+        return latexText;
    }

-    public void setConference(Conference conference) {
-        this.conference = conference;
+    public void setLatexText(String latexText) {
+        this.latexText = latexText;
+    }
+
+    public List<Conference> getConferences() {
+        return conferences;
+    }
+
+    public void setConferences(List<Conference> conferences) {
+        this.conferences = conferences;
    }

    public List<Grant> getGrants() {
@ -313,12 +314,13 @@ public class Paper extends BaseEntity implements UserActivity, EventSource {
                Objects.equals(events, paper.events) &&
                Objects.equals(files, paper.files) &&
                Objects.equals(authors, paper.authors) &&
-                Objects.equals(conference, paper.conference) &&
+                Objects.equals(latexText, paper.latexText) &&
+                Objects.equals(conferences, paper.conferences) &&
                Objects.equals(grants, paper.grants);
    }

    @Override
    public int hashCode() {
-        return Objects.hash(super.hashCode(), title, status, type, createDate, updateDate, deadlines, comment, url, locked, events, files, authors, conference, grants);
+        return Objects.hash(super.hashCode(), title, status, type, createDate, updateDate, deadlines, comment, url, locked, events, files, authors, latexText, conferences, grants);
    }
 }
--- a/src/main/java/ru/ulstu/paper/model/PaperDto.java
+++ b/src/main/java/ru/ulstu/paper/model/PaperDto.java
@ -2,15 +2,13 @@ package ru.ulstu.paper.model;

 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
-import jakarta.validation.constraints.NotEmpty;
-import jakarta.validation.constraints.Size;
 import org.apache.commons.lang3.StringUtils;
-import org.springframework.format.annotation.DateTimeFormat;
-import ru.ulstu.core.model.BaseEntity;
+import org.hibernate.validator.constraints.NotEmpty;
 import ru.ulstu.deadline.model.Deadline;
 import ru.ulstu.file.model.FileDataDto;
 import ru.ulstu.user.model.UserDto;

+import javax.validation.constraints.Size;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
@ -28,9 +26,7 @@ public class PaperDto {
    private String title;
    private Paper.PaperStatus status;
    private Paper.PaperType type;
-    @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss.SSSXXX")
    private Date createDate;
-    @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss.SSSXXX")
    private Date updateDate;
    @NotEmpty
    private List<Deadline> deadlines = new ArrayList<>();
@ -93,9 +89,10 @@ public class PaperDto {
        this.deadlines = paper.getDeadlines();
        this.comment = paper.getComment();
        this.url = paper.getUrl();
+        this.latexText = paper.getLatexText();
        this.locked = paper.getLocked();
        this.files = convert(paper.getFiles(), FileDataDto::new);
-        this.authorIds = convert(paper.getAuthors(), BaseEntity::getId);
+        this.authorIds = convert(paper.getAuthors(), user -> user.getId());
        this.authors = convert(paper.getAuthors(), UserDto::new);
        this.references = convert(paper.getReferences(), ReferenceDto::new);
    }
@ -215,7 +212,7 @@ public class PaperDto {
    public String getAuthorsString() {
        return StringUtils.abbreviate(authors
                .stream()
-                .map(UserDto::getLastName)
+                .map(author -> author.getLastName())
                .collect(Collectors.joining(", ")), MAX_AUTHORS_LENGTH);
    }

--- a/src/main/java/ru/ulstu/paper/model/Reference.java
+++ b/src/main/java/ru/ulstu/paper/model/Reference.java
@ -1,11 +1,12 @@
 package ru.ulstu.paper.model;

-import jakarta.persistence.Column;
-import jakarta.persistence.Entity;
-import jakarta.persistence.EnumType;
-import jakarta.persistence.Enumerated;
 import ru.ulstu.core.model.BaseEntity;

+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.EnumType;
+import javax.persistence.Enumerated;
+
@Entity
 public class Reference extends BaseEntity {

--- a/src/main/java/ru/ulstu/paper/model/ReferenceDto.java
+++ b/src/main/java/ru/ulstu/paper/model/ReferenceDto.java
@ -8,7 +8,7 @@ public class ReferenceDto {
        ARTICLE("Статья"),
        BOOK("Книга");

-        private final String typeName;
+        private String typeName;

        ReferenceType(String name) {
            this.typeName = name;
@ -23,7 +23,7 @@ public class ReferenceDto {
        GOST("ГОСТ"),
        SPRINGER("Springer");

-        private final String standardName;
+        private String standardName;

        FormatStandard(String name) {
            this.standardName = name;
--- a/src/main/java/ru/ulstu/paper/repository/PaperRepository.java
+++ b/src/main/java/ru/ulstu/paper/repository/PaperRepository.java
@ -21,7 +21,7 @@ public interface PaperRepository extends JpaRepository<Paper, Integer> {

    List<Paper> findByStatusNot(Paper.PaperStatus status);

-    List<Paper> findByConferenceIsNullAndStatusNot(Paper.PaperStatus status);
+    List<Paper> findByConferencesIsNullAndStatusNot(Paper.PaperStatus status);

-    List<Paper> findByIdNotInAndConferenceIsNullAndStatusNot(List<Integer> paperIds, Paper.PaperStatus status);
+    List<Paper> findByIdNotInAndConferencesIsNullAndStatusNot(List<Integer> paperIds, Paper.PaperStatus status);
 }
--- a/src/main/java/ru/ulstu/paper/service/LatexService.java
+++ b/src/main/java/ru/ulstu/paper/service/LatexService.java
@ -12,11 +12,11 @@ import java.nio.file.Files;

@Service
 public class LatexService {
-    private static final String PDF_LATEX_ERROR = "Errors occurred while executing pdfLaTeX.";
-    private static final String BIBTEX_ERROR = "Errors occurred while executing bibtex.";
+    private final String pdfLatexError = "Errors occurred while executing pdfLaTeX.";
+    private final String bibtexError = "Errors occurred while executing bibtex.";
    private String errorMessage;
    private File pdfFile;
-    private final FileService fileService;
+    private FileService fileService;

    public LatexService(FileService fileService) {
        this.fileService = fileService;
@ -56,9 +56,9 @@ public class LatexService {
    }

    private boolean generate(String filename, File dir) throws IOException, InterruptedException {
-        startProcess(new String[]{"pdflatex", filename, "--interaction=nonstopmode"}, dir, PDF_LATEX_ERROR);
-        startProcess(new String[]{"bibtex", filename}, dir, BIBTEX_ERROR);
-        if (startProcess(new String[]{"pdflatex", filename, "--interaction=nonstopmode"}, dir, PDF_LATEX_ERROR) != 0) {
+        startProcess(new String[]{"pdflatex", filename, "--interaction=nonstopmode"}, dir, pdfLatexError);
+        startProcess(new String[]{"bibtex", filename}, dir, bibtexError);
+        if (startProcess(new String[]{"pdflatex", filename, "--interaction=nonstopmode"}, dir, pdfLatexError) != 0) {
            return false;
        }
        return checkPdf(filename, dir);
--- a/src/main/java/ru/ulstu/paper/service/PaperNotificationService.java
+++ b/src/main/java/ru/ulstu/paper/service/PaperNotificationService.java
@ -1,5 +1,6 @@
 package ru.ulstu.paper.service;

+import com.google.common.collect.ImmutableMap;
 import org.springframework.stereotype.Service;
 import ru.ulstu.core.util.DateUtils;
 import ru.ulstu.paper.model.Paper;
@ -45,22 +46,22 @@ public class PaperNotificationService {
    }

    private void sendMessageDeadline(Paper paper) {
-        Map<String, Object> variables = Map.of("paper", paper);
+        Map<String, Object> variables = ImmutableMap.of("paper", paper);
        sendForAllAuhtors(variables, paper, TEMPLATE_DEADLINE, TITLE_DEADLINE);
    }

    public void sendCreateNotification(Paper paper) {
-        Map<String, Object> variables = Map.of("paper", paper);
+        Map<String, Object> variables = ImmutableMap.of("paper", paper);
        sendForAllAuhtors(variables, paper, TEMPLATE_CREATE, TITLE_CREATE);
    }

    public void statusChangeNotification(Paper paper, Paper.PaperStatus oldStatus) {
-        Map<String, Object> variables = Map.of("paper", paper, "oldStatus", oldStatus);
+        Map<String, Object> variables = ImmutableMap.of("paper", paper, "oldStatus", oldStatus);
        sendForAllAuhtors(variables, paper, TEMPLATE_STATUS_CHANGED, TITLE_STATUS_CHANGED);
    }

    public void sendFailedNotification(Paper paper, Paper.PaperStatus oldStatus) {
-        Map<String, Object> variables = Map.of("paper", paper, "oldStatus", oldStatus);
+        Map<String, Object> variables = ImmutableMap.of("paper", paper, "oldStatus", oldStatus);
        sendForAllAuhtors(variables, paper, TEMPLATE_FAILED, TITLE_FAILED);
    }

--- a/src/main/java/ru/ulstu/paper/service/PaperService.java
+++ b/src/main/java/ru/ulstu/paper/service/PaperService.java
@ -22,7 +22,6 @@ import ru.ulstu.user.service.UserService;

 import java.io.IOException;
 import java.text.MessageFormat;
-import java.time.temporal.ChronoUnit;
 import java.util.Arrays;
 import java.util.Date;
 import java.util.HashSet;
@ -81,7 +80,9 @@ public class PaperService {
    }

    public List<PaperDto> findAllDto() {
-        return convert(findAll(), PaperDto::new);
+        List<PaperDto> papers = convert(findAll(), PaperDto::new);
+        papers.forEach(paperDto -> paperDto.setTitle(StringUtils.abbreviate(paperDto.getTitle(), MAX_DISPLAY_SIZE)));
+        return papers;
    }

    public List<Paper> findAllActive() {
@ -91,38 +92,35 @@ public class PaperService {
                .collect(toList());
    }

-    public List<Paper> findAllActiveByCurrentUser() {
-        return findAllActive()
-                .stream()
-                .filter(paper -> paper.getAuthors().contains(userService.getCurrentUser()))
-                .collect(toList());
-    }
-
    public List<PaperDto> findAllActiveDto() {
        return convert(findAllActive(), PaperDto::new);
    }

    public PaperDto findOneDto(Integer id) {
-        return new PaperDto(paperRepository.findById(id).orElseThrow());
+        return new PaperDto(paperRepository.findOne(id));
    }

    @Transactional
    public Integer create(PaperDto paperDto) throws IOException {
        Paper newPaper = copyFromDto(new Paper(), paperDto);
-        return create(newPaper).getId();
+        newPaper = paperRepository.save(newPaper);
+        paperNotificationService.sendCreateNotification(newPaper);
+        eventService.createFromPaper(newPaper);
+        return newPaper.getId();
    }

    @Transactional
    public Paper create(Paper paper) {
        Paper newPaper = paperRepository.save(paper);
-        newPaper.setCreateDate(new Date());
        paperNotificationService.sendCreateNotification(newPaper);
+        eventService.createFromPaper(newPaper);
        return newPaper;
    }

    private Paper copyFromDto(Paper paper, PaperDto paperDto) throws IOException {
        paper.setComment(paperDto.getComment());
        paper.setUrl(paperDto.getUrl());
+        paper.setLatexText(paperDto.getLatexText());
        paper.setCreateDate(paper.getCreateDate() == null ? new Date() : paper.getCreateDate());
        paper.setLocked(paperDto.getLocked());
        paper.setStatus(paperDto.getStatus() == null ? DRAFT : paperDto.getStatus());
@ -141,7 +139,7 @@ public class PaperService {
        return paper;
    }

-    private List<Reference> saveOrCreateReferences(List<ReferenceDto> references) {
+    public List<Reference> saveOrCreateReferences(List<ReferenceDto> references) {
        return references
                .stream()
                .filter(reference -> !reference.getDeleted())
@ -150,15 +148,15 @@ public class PaperService {
    }

    @Transactional
-    private Reference updateReference(ReferenceDto referenceDto) {
-        Reference updateReference = referenceRepository.getOne(referenceDto.getId());
+    public Reference updateReference(ReferenceDto referenceDto) {
+        Reference updateReference = referenceRepository.findOne(referenceDto.getId());
        copyFromDto(updateReference, referenceDto);
        referenceRepository.save(updateReference);
        return updateReference;
    }

    @Transactional
-    private Reference createReference(ReferenceDto referenceDto) {
+    public Reference createReference(ReferenceDto referenceDto) {
        Reference newReference = new Reference();
        copyFromDto(newReference, referenceDto);
        newReference = referenceRepository.save(newReference);
@ -178,7 +176,7 @@ public class PaperService {

    @Transactional
    public Integer update(PaperDto paperDto) throws IOException {
-        Paper paper = paperRepository.getOne(paperDto.getId());
+        Paper paper = paperRepository.findOne(paperDto.getId());
        Paper.PaperStatus oldStatus = paper.getStatus();
        Set<User> oldAuthors = new HashSet<>(paper.getAuthors());

@ -208,29 +206,10 @@ public class PaperService {
        return paper.getId();
    }

-    @Transactional
-    public Integer update(Paper newPaper) {
-        Paper oldPaper = paperRepository.getOne(newPaper.getId());
-        Paper.PaperStatus oldStatus = oldPaper.getStatus();
-        Set<User> oldAuthors = new HashSet<>(oldPaper.getAuthors());
-        newPaper.setUpdateDate(new Date());
-        newPaper = paperRepository.save(newPaper);
-        for (User author : newPaper.getAuthors()) {
-            if (!oldAuthors.contains(author)) {
-                paperNotificationService.sendCreateNotification(newPaper);
-            }
-        }
-
-        if (newPaper.getStatus() != oldStatus) {
-            paperNotificationService.statusChangeNotification(newPaper, oldStatus);
-        }
-
-        return newPaper.getId();
-    }
-
    @Transactional
    public void delete(Integer paperId) {
-        delete(paperRepository.getOne(paperId));
+        Paper paper = paperRepository.findOne(paperId);
+        paperRepository.delete(paper);
    }

    public List<Paper.PaperStatus> getPaperStatuses() {
@ -313,27 +292,19 @@ public class PaperService {
        }
    }

-    public void save(Paper paper) {
-        if (isEmpty(paper.getId())) {
-            create(paper);
-        } else {
-            update(paper);
-        }
-    }
-
    public PaperDto findById(Integer paperId) {
-        return new PaperDto(paperRepository.getOne(paperId));
+        return new PaperDto(paperRepository.findOne(paperId));
    }

    public Paper findPaperById(Integer paperId) {
-        return paperRepository.getOne(paperId);
+        return paperRepository.findOne(paperId);
    }

    public List<Paper> findAllNotSelect(List<Integer> paperIds) {
        if (!paperIds.isEmpty()) {
-            return sortPapers(paperRepository.findByIdNotInAndConferenceIsNullAndStatusNot(paperIds, COMPLETED));
+            return sortPapers(paperRepository.findByIdNotInAndConferencesIsNullAndStatusNot(paperIds, COMPLETED));
        } else {
-            return sortPapers(paperRepository.findByConferenceIsNullAndStatusNot(COMPLETED));
+            return sortPapers(paperRepository.findByConferencesIsNullAndStatusNot(COMPLETED));
        }
    }

@ -387,7 +358,7 @@ public class PaperService {
                .collect(Collectors.toList()));
    }

-    private String getGostReference(ReferenceDto referenceDto) {
+    public String getGostReference(ReferenceDto referenceDto) {
        return MessageFormat.format(referenceDto.getReferenceType() == BOOK ? "{0} {1} - {2}{3}. - {4}с." : "{0} {1}{5} {2}{3}. С. {4}.",
                referenceDto.getAuthors(),
                referenceDto.getPublicationTitle(),
@ -397,7 +368,7 @@ public class PaperService {
                StringUtils.isEmpty(referenceDto.getJournalOrCollectionTitle()) ? "." : " // " + referenceDto.getJournalOrCollectionTitle() + ".");
    }

-    private String getSpringerReference(ReferenceDto referenceDto) {
+    public String getSpringerReference(ReferenceDto referenceDto) {
        return MessageFormat.format("{0} ({1}) {2}.{3} {4}pp {5}",
                referenceDto.getAuthors(),
                referenceDto.getPublicationYear() != null ? referenceDto.getPublicationYear().toString() : "",
@ -424,22 +395,4 @@ public class PaperService {
    public void ping(int paperId) throws IOException {
        pingService.addPing(findPaperById(paperId));
    }
-
-    public void createByTitle(String newPaperTitle) {
-        Paper paper = new Paper();
-        paper.setTitle(newPaperTitle);
-        paper.setStatus(DRAFT);
-        paper.getAuthors().add(userService.getCurrentUser());
-        paper.getDeadlines().add(deadlineService.createWithOffset(new Date(), 1, ChronoUnit.WEEKS));
-        create(paper);
-    }
-
-    public void delete(List<Paper> papers) {
-        papers.forEach(paper -> delete(paper));
-    }
-
-    public void delete(Paper paper) {
-        deadlineService.delete(paper.getDeadlines());
-        paperRepository.delete(paper);
-    }
 }
--- a/src/main/java/ru/ulstu/ping/model/Ping.java
+++ b/src/main/java/ru/ulstu/ping/model/Ping.java
@ -1,17 +1,8 @@
 package ru.ulstu.ping.model;

-import jakarta.persistence.Column;
-import jakarta.persistence.DiscriminatorType;
-import jakarta.persistence.Entity;
-import jakarta.persistence.JoinColumn;
-import jakarta.persistence.ManyToOne;
-import jakarta.persistence.Table;
-import jakarta.persistence.Temporal;
-import jakarta.persistence.TemporalType;
 import org.hibernate.annotations.Any;
-import org.hibernate.annotations.AnyDiscriminator;
-import org.hibernate.annotations.AnyDiscriminatorValue;
-import org.hibernate.annotations.AnyKeyJavaClass;
+import org.hibernate.annotations.AnyMetaDef;
+import org.hibernate.annotations.MetaValue;
 import org.springframework.format.annotation.DateTimeFormat;
 import ru.ulstu.conference.model.Conference;
 import ru.ulstu.core.model.BaseEntity;
@ -21,6 +12,14 @@ import ru.ulstu.paper.model.Paper;
 import ru.ulstu.project.model.Project;
 import ru.ulstu.user.model.User;

+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+import javax.persistence.Table;
+import javax.persistence.Temporal;
+import javax.persistence.TemporalType;
 import java.util.Date;

@Entity
@ -37,15 +36,20 @@ public class Ping extends BaseEntity {
    @Column(name = "activity_type", insertable = false, updatable = false)
    private String activityType;

-    @Any
-    @AnyDiscriminator(DiscriminatorType.STRING)
-    @AnyKeyJavaClass(Integer.class)
+    @Any(
+            metaColumn = @Column(name = "activity_type"),
+            fetch = FetchType.LAZY
+    )
+    @AnyMetaDef(
+            idType = "integer", metaType = "string",
+            metaValues = {
+                    @MetaValue(targetEntity = Conference.class, value = "CONFERENCE"),
+                    @MetaValue(targetEntity = Paper.class, value = "PAPER"),
+                    @MetaValue(targetEntity = Project.class, value = "PROJECT"),
+                    @MetaValue(targetEntity = Grant.class, value = "GRANT")
+            }
+    )
    @JoinColumn(name = "activity_id")
-    @Column(name = "activity_type")
-    @AnyDiscriminatorValue(entity = Conference.class, discriminator = "CONFERENCE")
-    @AnyDiscriminatorValue(entity = Paper.class, discriminator = "PAPER")
-    @AnyDiscriminatorValue(entity = Project.class, discriminator = "PROJECT")
-    @AnyDiscriminatorValue(entity = Grant.class, discriminator = "GRANT")
    private UserActivity activity;

    public Ping() {
--- a/src/main/java/ru/ulstu/ping/service/PingScheduler.java
+++ b/src/main/java/ru/ulstu/ping/service/PingScheduler.java
@ -1,5 +1,6 @@
 package ru.ulstu.ping.service;

+import com.google.common.collect.ImmutableMap;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.scheduling.annotation.Scheduled;
@ -14,7 +15,6 @@ import ru.ulstu.user.service.MailService;
 import java.time.LocalDate;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.Map;
 import java.util.Set;

@Service
@ -51,8 +51,8 @@ public class PingScheduler {
        }

        for (PingInfo pingInfo : pingInfos) {
-            mailService.sendEmailFromTemplate(Map.of("pings", pingInfo.getPings()),
-                    pingInfo.getUser(), "pingsInfoWeekEmail", PING_MAIL_SUBJECT);
+            mailService.sendEmailFromTemplate(ImmutableMap.of("pings", pingInfo.getPings()),
+                    pingInfo.getUser(),  "pingsInfoWeekEmail", PING_MAIL_SUBJECT);
        }
    }
 }
--- a/src/main/java/ru/ulstu/ping/service/PingService.java
+++ b/src/main/java/ru/ulstu/ping/service/PingService.java
@ -17,18 +17,20 @@ import java.util.List;
 public class PingService {
    private final PingRepository pingRepository;
    private final UserService userService;
+    private final PingScheduler pingScheduler;

    public PingService(PingRepository pingRepository,
                       UserService userService,
                       PingScheduler pingScheduler) {
        this.pingRepository = pingRepository;
        this.userService = userService;
+        this.pingScheduler = pingScheduler;
    }

    @Transactional
    public Ping addPing(UserActivity activity) throws IOException {
        Ping newPing = new Ping(new Date(), userService.getCurrentUser());
-        //newPing.setActivity(activity);
+        newPing.setActivity(activity);
        return pingRepository.save(newPing);
    }

--- a/src/main/java/ru/ulstu/project/controller/ProjectController.java
+++ b/src/main/java/ru/ulstu/project/controller/ProjectController.java
@ -1,7 +1,5 @@
 package ru.ulstu.project.controller;

-import io.swagger.v3.oas.annotations.Hidden;
-import jakarta.validation.Valid;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.ModelMap;
 import org.springframework.validation.Errors;
@ -18,7 +16,9 @@ import ru.ulstu.project.model.Project;
 import ru.ulstu.project.model.ProjectDto;
 import ru.ulstu.project.service.ProjectService;
 import ru.ulstu.user.model.User;
+import springfox.documentation.annotations.ApiIgnore;

+import javax.validation.Valid;
 import java.io.IOException;
 import java.util.List;
 import java.util.stream.Collectors;
@ -27,7 +27,7 @@ import static org.springframework.util.StringUtils.isEmpty;

@Controller()
@RequestMapping(value = "/projects")
-@Hidden
+@ApiIgnore
 public class ProjectController {
    private final ProjectService projectService;

--- a/src/main/java/ru/ulstu/project/model/Project.java
+++ b/src/main/java/ru/ulstu/project/model/Project.java
@ -1,20 +1,8 @@
 package ru.ulstu.project.model;

-import jakarta.persistence.CascadeType;
-import jakarta.persistence.DiscriminatorValue;
-import jakarta.persistence.Entity;
-import jakarta.persistence.EnumType;
-import jakarta.persistence.Enumerated;
-import jakarta.persistence.FetchType;
-import jakarta.persistence.JoinColumn;
-import jakarta.persistence.JoinTable;
-import jakarta.persistence.ManyToMany;
-import jakarta.persistence.ManyToOne;
-import jakarta.persistence.OneToMany;
-import jakarta.validation.constraints.NotBlank;
-import jakarta.validation.constraints.NotNull;
 import org.hibernate.annotations.Fetch;
 import org.hibernate.annotations.FetchMode;
+import org.hibernate.validator.constraints.NotBlank;
 import ru.ulstu.core.model.BaseEntity;
 import ru.ulstu.core.model.EventSource;
 import ru.ulstu.core.model.UserActivity;
@ -24,6 +12,18 @@ import ru.ulstu.grant.model.Grant;
 import ru.ulstu.timeline.model.Event;
 import ru.ulstu.user.model.User;

+import javax.persistence.CascadeType;
+import javax.persistence.DiscriminatorValue;
+import javax.persistence.Entity;
+import javax.persistence.EnumType;
+import javax.persistence.Enumerated;
+import javax.persistence.FetchType;
+import javax.persistence.JoinColumn;
+import javax.persistence.JoinTable;
+import javax.persistence.ManyToMany;
+import javax.persistence.ManyToOne;
+import javax.persistence.OneToMany;
+import javax.validation.constraints.NotNull;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashSet;
@ -42,7 +42,7 @@ public class Project extends BaseEntity implements UserActivity, EventSource {
        CLOSED("Закрыт"),
        FAILED("Провалены сроки");

-        private final String statusName;
+        private String statusName;

        ProjectStatus(String statusName) {
            this.statusName = statusName;
--- a/src/main/java/ru/ulstu/project/model/ProjectDto.java
+++ b/src/main/java/ru/ulstu/project/model/ProjectDto.java
@ -2,7 +2,7 @@ package ru.ulstu.project.model;

 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
-import jakarta.validation.constraints.NotEmpty;
+import org.hibernate.validator.constraints.NotEmpty;
 import org.thymeleaf.util.StringUtils;
 import ru.ulstu.deadline.model.Deadline;
 import ru.ulstu.file.model.FileDataDto;
--- a/src/main/java/ru/ulstu/project/service/ProjectService.java
+++ b/src/main/java/ru/ulstu/project/service/ProjectService.java
@ -65,7 +65,7 @@ public class ProjectService {
    }

    public ProjectDto findOneDto(Integer id) {
-        return new ProjectDto(projectRepository.getOne(id));
+        return new ProjectDto(projectRepository.findOne(id));
    }

    public List<Project.ProjectStatus> getProjectStatuses() {
@ -81,8 +81,8 @@ public class ProjectService {
    }

    @Transactional
-    private Project update(ProjectDto projectDto) throws IOException {
-        Project project = projectRepository.getOne(projectDto.getId());
+    public Project update(ProjectDto projectDto) throws IOException {
+        Project project = projectRepository.findOne(projectDto.getId());
        projectRepository.save(copyFromDto(project, projectDto));
        eventService.updateProjectDeadlines(project);
        for (FileDataDto file : projectDto.getFiles().stream()
@ -95,8 +95,8 @@ public class ProjectService {

    @Transactional
    public boolean delete(Integer projectId) throws IOException {
-        if (projectRepository.existsById(projectId)) {
-            Project project = projectRepository.getOne(projectId);
+        if (projectRepository.exists(projectId)) {
+            Project project = projectRepository.findOne(projectId);
            projectRepository.delete(project);
            return true;
        }
@ -108,7 +108,7 @@ public class ProjectService {
        project.setStatus(projectDto.getStatus() == null ? TECHNICAL_TASK : projectDto.getStatus());
        project.setTitle(projectDto.getTitle());
        if (projectDto.getGrant() != null && projectDto.getGrant().getId() != null) {
-            project.setGrant(grantRepository.getOne(projectDto.getGrant().getId()));
+            project.setGrant(grantRepository.findOne(projectDto.getGrant().getId()));
        }
        project.setRepository(projectDto.getRepository());
        project.setDeadlines(deadlineService.saveOrCreate(projectDto.getDeadlines()));
@ -139,11 +139,12 @@ public class ProjectService {
    }

    public Project findById(Integer id) {
-        return projectRepository.getOne(id);
+        return projectRepository.findOne(id);
    }

    public List<User> getProjectExecutors(ProjectDto projectDto) {
-        return userService.findAll();
+        List<User> users = userService.findAll();
+        return users;
    }

    @Transactional
@ -152,11 +153,12 @@ public class ProjectService {
    }

    public List<GrantDto> getAllGrants() {
-        return convert(grantRepository.findAll(), GrantDto::new);
+        List<GrantDto> grants = convert(grantRepository.findAll(), GrantDto::new);
+        return grants;
    }

-    private List<GrantDto> getProjectGrants(List<Integer> grantIds) {
-        return convert(grantRepository.findAllById(grantIds), GrantDto::new);
+    public List<GrantDto> getProjectGrants(List<Integer> grantIds) {
+        return convert(grantRepository.findAll(grantIds), GrantDto::new);
    }

    public void attachGrant(ProjectDto projectDto) {
--- a/src/main/java/ru/ulstu/strategy/api/EntityCreateStrategy.java
+++ b/src/main/java/ru/ulstu/strategy/api/EntityCreateStrategy.java
@ -11,7 +11,7 @@ public abstract class EntityCreateStrategy<T extends UserActivity> {

    protected abstract void createEntity(User user);

-    private void createDefaultEntityIfNeed(List<User> allUsers, List<? extends UserActivity> entities) {
+    protected void createDefaultEntityIfNeed(List<User> allUsers, List<? extends UserActivity> entities) {
        allUsers.forEach(user -> {
            if (entities
                    .stream()
--- a/src/main/java/ru/ulstu/students/controller/Navigation.java
+++ b/src/main/java/ru/ulstu/students/controller/Navigation.java
@ -2,7 +2,7 @@ package ru.ulstu.students.controller;

 import org.springframework.validation.Errors;

-class Navigation {
+public class Navigation {
    public static final String REDIRECT_TO = "redirect:%s";
    public static final String TASKS_PAGE = "/students/tasks";
    public static final String TASK_PAGE = "/students/task";
--- a/src/main/java/ru/ulstu/students/controller/TaskController.java
+++ b/src/main/java/ru/ulstu/students/controller/TaskController.java
@ -1,7 +1,5 @@
 package ru.ulstu.students.controller;

-import io.swagger.v3.oas.annotations.Hidden;
-import jakarta.validation.Valid;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.ModelMap;
 import org.springframework.validation.Errors;
@ -17,7 +15,9 @@ import ru.ulstu.students.model.TaskDto;
 import ru.ulstu.students.model.TaskFilterDto;
 import ru.ulstu.students.service.TaskService;
 import ru.ulstu.tags.model.Tag;
+import springfox.documentation.annotations.ApiIgnore;

+import javax.validation.Valid;
 import java.io.IOException;
 import java.util.List;
 import java.util.stream.Collectors;
@ -29,7 +29,7 @@ import static ru.ulstu.students.controller.Navigation.TASK_PAGE;

@Controller()
@RequestMapping(value = "/students")
-@Hidden
+@ApiIgnore
 public class TaskController {

    private final TaskService taskService;
--- a/src/main/java/ru/ulstu/students/model/Scheduler.java
+++ b/src/main/java/ru/ulstu/students/model/Scheduler.java
@ -1,14 +1,14 @@
 package ru.ulstu.students.model;

-import jakarta.persistence.Entity;
-import jakarta.persistence.JoinColumn;
-import jakarta.persistence.OneToOne;
-import jakarta.persistence.Table;
-import jakarta.persistence.Temporal;
-import jakarta.persistence.TemporalType;
 import org.springframework.format.annotation.DateTimeFormat;
 import ru.ulstu.core.model.BaseEntity;

+import javax.persistence.Entity;
+import javax.persistence.JoinColumn;
+import javax.persistence.OneToOne;
+import javax.persistence.Table;
+import javax.persistence.Temporal;
+import javax.persistence.TemporalType;
 import java.util.Date;

@Entity
--- a/src/main/java/ru/ulstu/students/model/Task.java
+++ b/src/main/java/ru/ulstu/students/model/Task.java
@ -1,28 +1,30 @@
 package ru.ulstu.students.model;

-import jakarta.persistence.CascadeType;
-import jakarta.persistence.Column;
-import jakarta.persistence.Entity;
-import jakarta.persistence.EnumType;
-import jakarta.persistence.Enumerated;
-import jakarta.persistence.FetchType;
-import jakarta.persistence.JoinColumn;
-import jakarta.persistence.JoinTable;
-import jakarta.persistence.ManyToMany;
-import jakarta.persistence.OneToMany;
-import jakarta.persistence.OrderBy;
-import jakarta.persistence.Temporal;
-import jakarta.persistence.TemporalType;
-import jakarta.validation.constraints.NotBlank;
 import org.hibernate.annotations.Fetch;
 import org.hibernate.annotations.FetchMode;
+import org.hibernate.validator.constraints.NotBlank;
 import ru.ulstu.core.model.BaseEntity;
 import ru.ulstu.core.model.EventSource;
 import ru.ulstu.deadline.model.Deadline;
 import ru.ulstu.tags.model.Tag;
 import ru.ulstu.timeline.model.Event;
 import ru.ulstu.user.model.User;
+import ru.ulstu.user.service.UserService;

+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.EnumType;
+import javax.persistence.Enumerated;
+import javax.persistence.FetchType;
+import javax.persistence.JoinColumn;
+import javax.persistence.JoinTable;
+import javax.persistence.ManyToMany;
+import javax.persistence.OneToMany;
+import javax.persistence.OrderBy;
+import javax.persistence.Temporal;
+import javax.persistence.TemporalType;
+import javax.persistence.Transient;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Date;
@ -37,7 +39,7 @@ public class Task extends BaseEntity implements EventSource {
        FAILED("Провалены сроки"),
        LOADED_FROM_KIAS("Загружен автоматически");

-        private final String statusName;
+        private String statusName;

        TaskStatus(String name) {
            this.statusName = name;
@ -53,10 +55,17 @@ public class Task extends BaseEntity implements EventSource {

    private String description;

+    @Transient
+    private UserService userService;
+
    public Task() {

    }

+    public Task(UserService userService) {
+        this.userService = userService;
+    }
+
    @Enumerated(value = EnumType.STRING)
    private TaskStatus status = TaskStatus.IN_WORK;

--- a/src/main/java/ru/ulstu/students/model/TaskDto.java
+++ b/src/main/java/ru/ulstu/students/model/TaskDto.java
@ -2,8 +2,8 @@ package ru.ulstu.students.model;

 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
-import jakarta.validation.constraints.NotEmpty;
 import org.apache.commons.lang3.StringUtils;
+import org.hibernate.validator.constraints.NotEmpty;
 import ru.ulstu.deadline.model.Deadline;
 import ru.ulstu.tags.model.Tag;

--- a/src/main/java/ru/ulstu/students/repository/TaskRepository.java
+++ b/src/main/java/ru/ulstu/students/repository/TaskRepository.java
@ -11,16 +11,16 @@ import java.util.List;

 public interface TaskRepository extends JpaRepository<Task, Integer> {

-    @Query("SELECT t FROM Task t WHERE (t.status = :status OR :status IS NULL) AND (:tag IS NULL OR :tag MEMBER OF t.tags) ORDER BY t.createDate DESC")
+    @Query("SELECT t FROM Task t WHERE (t.status = :status OR :status IS NULL) AND (:tag IS NULL OR :tag MEMBER OF t.tags) ORDER BY create_date DESC")
    List<Task> filterNew(@Param("status") Task.TaskStatus status, @Param("tag") Tag tag);

-    @Query("SELECT t FROM Task t WHERE (t.status = :status OR :status IS NULL) AND (:tag IS NULL OR :tag MEMBER OF t.tags) ORDER BY t.createDate ASC")
+    @Query("SELECT t FROM Task t WHERE (t.status = :status OR :status IS NULL) AND (:tag IS NULL OR :tag MEMBER OF t.tags) ORDER BY create_date ASC")
    List<Task> filterOld(@Param("status") Task.TaskStatus status, @Param("tag") Tag tag);

-    @Query("SELECT t FROM Task t WHERE(:tag IS NULL OR :tag MEMBER OF t.tags) ORDER BY t.createDate DESC")
+    @Query("SELECT t FROM Task t WHERE(:tag IS NULL OR :tag MEMBER OF t.tags) ORDER BY create_date DESC")
    List<Task> findByTag(@Param("tag") Tag tag);

-    @Query("SELECT t FROM Task t WHERE (t.createDate >= :date) ORDER BY t.createDate DESC")
+    @Query("SELECT t FROM Task t WHERE (t.createDate >= :date) ORDER BY create_date DESC")
    List<Task> findAllYear(@Param("date") Date date);


--- a/src/main/java/ru/ulstu/students/service/SchedulerService.java
+++ b/src/main/java/ru/ulstu/students/service/SchedulerService.java
@ -38,8 +38,8 @@ public class SchedulerService {

    @Transactional
    private void delete(Integer schedulerId) {
-        if (schedulerRepository.existsById(schedulerId)) {
-            schedulerRepository.deleteById(schedulerId);
+        if (schedulerRepository.exists(schedulerId)) {
+            schedulerRepository.delete(schedulerId);
        }
    }

--- a/src/main/java/ru/ulstu/students/service/TaskService.java
+++ b/src/main/java/ru/ulstu/students/service/TaskService.java
@ -55,7 +55,7 @@ public class TaskService {
    }

    public List<Task> findAll() {
-        return taskRepository.findAll(Sort.by(Sort.Direction.DESC, "createDate"));
+        return taskRepository.findAll(new Sort(Sort.Direction.DESC, "createDate"));
    }

    public List<TaskDto> findAllDto() {
@ -65,7 +65,7 @@ public class TaskService {
    }

    public TaskDto findOneDto(Integer id) {
-        return new TaskDto(taskRepository.getOne(id));
+        return new TaskDto(taskRepository.findOne(id));
    }

    public List<TaskDto> filter(TaskFilterDto filterDto) {
@ -101,8 +101,8 @@ public class TaskService {
    }

    @Transactional
-    private Integer update(TaskDto taskDto) throws IOException {
-        Task task = taskRepository.getOne(taskDto.getId());
+    public Integer update(TaskDto taskDto) throws IOException {
+        Task task = taskRepository.findOne(taskDto.getId());
        taskRepository.save(copyFromDto(task, taskDto));
        eventService.updateTaskDeadlines(task);
        return task.getId();
@ -110,13 +110,13 @@ public class TaskService {

    @Transactional
    public boolean delete(Integer taskId) throws IOException {
-        if (taskRepository.existsById(taskId)) {
-            Task scheduleTask = taskRepository.getOne(taskId);
+        if (taskRepository.exists(taskId)) {
+            Task scheduleTask = taskRepository.findOne(taskId);
            Scheduler sch = schedulerRepository.findOneByTask(scheduleTask);
            if (sch != null) {
-                schedulerRepository.deleteById(sch.getId());
+                schedulerRepository.delete(sch.getId());
            }
-            taskRepository.deleteById(taskId);
+            taskRepository.delete(taskId);
            return true;
        }
        return false;
--- a/src/main/java/ru/ulstu/tags/model/Tag.java
+++ b/src/main/java/ru/ulstu/tags/model/Tag.java
@ -2,13 +2,13 @@ package ru.ulstu.tags.model;

 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
-import jakarta.persistence.Column;
-import jakarta.persistence.Entity;
-import jakarta.persistence.Table;
-import jakarta.validation.constraints.NotEmpty;
-import jakarta.validation.constraints.Size;
+import org.hibernate.validator.constraints.NotEmpty;
 import ru.ulstu.core.model.BaseEntity;

+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Table;
+import javax.validation.constraints.Size;
 import java.util.Objects;

@Entity
--- a/src/main/java/ru/ulstu/tags/service/TagService.java
+++ b/src/main/java/ru/ulstu/tags/service/TagService.java
@ -33,17 +33,17 @@ public class TagService {
    }

    @Transactional
-    private Tag getExistById(Tag tag) {
-        return tagRepository.getOne(tag.getId());
+    public Tag getExistById(Tag tag) {
+        return tagRepository.findOne(tag.getId());
    }

    @Transactional
-    private Tag isExistByName(String tagName) {
+    public Tag isExistByName(String tagName) {
        return tagRepository.findByName(tagName);
    }

    @Transactional
-    private Tag create(Tag tag) {
+    public Tag create(Tag tag) {
        Tag newTag = new Tag();
        newTag.setTagName(tag.getTagName());
        newTag = tagRepository.save(newTag);
@ -55,7 +55,7 @@ public class TagService {
    }

    public Tag findById(Integer tagId) {
-        return tagRepository.getOne(tagId);
+        return tagRepository.findOne(tagId);
    }

 }
--- a/src/main/java/ru/ulstu/timeline/controller/EventController.java
+++ b/src/main/java/ru/ulstu/timeline/controller/EventController.java
@ -1,6 +1,5 @@
 package ru.ulstu.timeline.controller;

-import jakarta.validation.Valid;
 import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
@ -14,11 +13,15 @@ import ru.ulstu.core.model.response.Response;
 import ru.ulstu.timeline.model.EventDto;
 import ru.ulstu.timeline.service.EventService;

+import javax.validation.Valid;
 import java.util.List;

+import static ru.ulstu.timeline.controller.EventController.URL;
+
@RestController
-@RequestMapping(Constants.API_1_0 + "events")
+@RequestMapping(URL)
 public class EventController {
+    public static final String URL = Constants.API_1_0 + "events";

    private final EventService eventService;

@ -37,18 +40,18 @@ public class EventController {
    }

    @PostMapping
-    public Response<Integer> createEvent(@RequestBody @Valid EventDto timelineDto) {
-        return new Response<>(eventService.create(timelineDto));
+    public Response createEvent(@RequestBody @Valid EventDto timelineDto) {
+        return new Response(eventService.create(timelineDto));
    }

    @PutMapping
-    public Response<Integer> updateEvent(@RequestBody @Valid EventDto eventDto) {
-        return new Response<>(eventService.update(eventDto));
+    public Response updateEvent(@RequestBody @Valid EventDto eventDto) {
+        return new Response(eventService.update(eventDto));
    }

    @DeleteMapping("/{event-id}")
-    public Response<Boolean> delete(@PathVariable("event-id") Integer eventId) {
+    public Response delete(@PathVariable("event-id") Integer eventId) {
        eventService.delete(eventId);
-        return new Response<>(Boolean.TRUE);
+        return new Response(true);
    }
 }
--- a/src/main/java/ru/ulstu/timeline/model/Event.java
+++ b/src/main/java/ru/ulstu/timeline/model/Event.java
@ -1,19 +1,6 @@
 package ru.ulstu.timeline.model;

-import jakarta.persistence.CascadeType;
-import jakarta.persistence.Column;
-import jakarta.persistence.Entity;
-import jakarta.persistence.EnumType;
-import jakarta.persistence.Enumerated;
-import jakarta.persistence.FetchType;
-import jakarta.persistence.JoinColumn;
-import jakarta.persistence.ManyToMany;
-import jakarta.persistence.ManyToOne;
-import jakarta.persistence.OneToMany;
-import jakarta.persistence.Temporal;
-import jakarta.persistence.TemporalType;
-import jakarta.validation.constraints.NotBlank;
-import jakarta.validation.constraints.NotNull;
+import org.hibernate.validator.constraints.NotBlank;
 import ru.ulstu.conference.model.Conference;
 import ru.ulstu.core.model.BaseEntity;
 import ru.ulstu.grant.model.Grant;
@ -22,6 +9,19 @@ import ru.ulstu.project.model.Project;
 import ru.ulstu.students.model.Task;
 import ru.ulstu.user.model.User;

+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.EnumType;
+import javax.persistence.Enumerated;
+import javax.persistence.FetchType;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToMany;
+import javax.persistence.ManyToOne;
+import javax.persistence.OneToMany;
+import javax.persistence.Temporal;
+import javax.persistence.TemporalType;
+import javax.validation.constraints.NotNull;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
@ -31,7 +31,7 @@ public class Event extends BaseEntity {
    public enum EventStatus {
        POSSIBLE("Возможное"), NEW("Новое"), IN_PROGRESS("В процессе"), COMPLETED("Завершено");

-        private final String name;
+        private String name;

        EventStatus(String name) {
            this.name = name;
--- a/src/main/java/ru/ulstu/timeline/model/EventDto.java
+++ b/src/main/java/ru/ulstu/timeline/model/EventDto.java
@ -2,8 +2,7 @@ package ru.ulstu.timeline.model;

 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
-import jakarta.validation.constraints.NotBlank;
-import jakarta.validation.constraints.NotNull;
+import org.hibernate.validator.constraints.NotBlank;
 import ru.ulstu.conference.model.ConferenceDto;
 import ru.ulstu.grant.model.GrantDto;
 import ru.ulstu.paper.model.PaperDto;
@ -11,6 +10,7 @@ import ru.ulstu.project.model.ProjectDto;
 import ru.ulstu.students.model.TaskDto;
 import ru.ulstu.user.model.UserDto;

+import javax.validation.constraints.NotNull;
 import java.util.Date;
 import java.util.List;

--- a/src/main/java/ru/ulstu/timeline/model/EventStatusDto.java
+++ b/src/main/java/ru/ulstu/timeline/model/EventStatusDto.java
@ -0,0 +1,19 @@
+package ru.ulstu.timeline.model;
+
+public class EventStatusDto {
+    private final String id;
+    private final String name;
+
+    public EventStatusDto(Event.EventStatus status) {
+        this.id = status.name();
+        this.name = status.getName();
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public String getName() {
+        return name;
+    }
+}
--- a/src/main/java/ru/ulstu/timeline/model/PeriodEvent.java
+++ b/src/main/java/ru/ulstu/timeline/model/PeriodEvent.java
@ -8,8 +8,8 @@ public enum PeriodEvent {
    EVERY_WEEK(Period.ofWeeks(1), "Каждую неделю"),
    EVERY_DAY(Period.ofDays(1), "Каждый день");

-    private final Period period;
-    private final String message;
+    private Period period;
+    private String message;

    PeriodEvent(Period period, String message) {
        this.period = period;
--- a/src/main/java/ru/ulstu/timeline/model/Timeline.java
+++ b/src/main/java/ru/ulstu/timeline/model/Timeline.java
@ -1,11 +1,11 @@
 package ru.ulstu.timeline.model;

-import jakarta.persistence.CascadeType;
-import jakarta.persistence.Entity;
-import jakarta.persistence.JoinColumn;
-import jakarta.persistence.OneToMany;
 import ru.ulstu.core.model.BaseEntity;

+import javax.persistence.CascadeType;
+import javax.persistence.Entity;
+import javax.persistence.JoinColumn;
+import javax.persistence.OneToMany;
 import java.util.ArrayList;
 import java.util.List;

--- a/src/main/java/ru/ulstu/timeline/service/EventScheduler.java
+++ b/src/main/java/ru/ulstu/timeline/service/EventScheduler.java
@ -1,5 +1,6 @@
 package ru.ulstu.timeline.service;

+import com.google.common.collect.ImmutableMap;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.scheduling.annotation.Scheduled;
@ -30,7 +31,7 @@ public class EventScheduler {
    public void sendNotifications() {
        List<Event> events = eventService.findByCurrentDate();
        events.forEach(event -> {
-            Map<String, Object> variables = Map.of("description", event.getDescription());
+            Map<String, Object> variables = ImmutableMap.of("description", event.getDescription());
            event.getRecipients()
                    .forEach(recipient -> mailService.sendEmailFromTemplate(variables, recipient, "eventNotification", event.getTitle()));
            if (event.getPeriod() == null) {
--- a/src/main/java/ru/ulstu/timeline/service/EventService.java
+++ b/src/main/java/ru/ulstu/timeline/service/EventService.java
@ -49,7 +49,7 @@ public class EventService {
    }

    @Transactional
-    public Integer create(EventDto eventDto) {
+    public int create(EventDto eventDto) {
        return eventRepository.save(copyFromDto(new Event(), eventDto)).getId();
    }

@ -67,7 +67,7 @@ public class EventService {

    @Transactional
    public Integer update(EventDto eventDto) {
-        Event event = eventRepository.getOne(eventDto.getId());
+        Event event = eventRepository.findOne(eventDto.getId());
        return eventRepository.save(copyFromDto(event, eventDto)).getId();
    }

@ -78,13 +78,13 @@ public class EventService {

    @Transactional
    public void delete(Integer eventId) {
-        Event event = eventRepository.getOne(eventId);
+        Event event = eventRepository.findOne(eventId);
        event.setParents(null);
        eventRepository.delete(event);
    }

    public List<Event> findByIds(List<Integer> ids) {
-        return eventRepository.findAllById(ids);
+        return eventRepository.findAll(ids);
    }

    public void createBasedOn(Event event, Date executeDate) {
@ -99,7 +99,7 @@ public class EventService {
        event = eventRepository.save(event);

        //set child to parent
-        Event parentEvent = eventRepository.getOne(parentEventId);
+        Event parentEvent = eventRepository.findOne(parentEventId);
        parentEvent.setChild(event);
        eventRepository.save(parentEvent);
    }
@ -134,10 +134,9 @@ public class EventService {
        }
        timelineService.save(timeline);
    }
-
    public void updatePaperDeadlines(Paper paper) {
        List<Event> foundEvents = eventRepository.findAllByPaper(paper);
-        eventRepository.deleteAll(foundEvents);
+        eventRepository.delete(foundEvents);
        createFromObject(paper, foundEvents, false, "статьи");
    }

@ -145,7 +144,7 @@ public class EventService {
        return eventRepository.findByCurrentDate();
    }

-    private List<Event> findAllFuture() {
+    public List<Event> findAllFuture() {
        return eventRepository.findAllFuture();
    }

@ -154,27 +153,27 @@ public class EventService {
    }

    public void updateConferenceDeadlines(Conference conference) {
-        eventRepository.deleteAll(eventRepository.findAllByConference(conference));
+        eventRepository.delete(eventRepository.findAllByConference(conference));
        createFromObject(conference, Collections.emptyList(), false, "конференции");
    }

    public void updateGrantDeadlines(Grant grant) {
-        eventRepository.deleteAll(eventRepository.findAllByGrant(grant));
+        eventRepository.delete(eventRepository.findAllByGrant(grant));
        createFromObject(grant, Collections.emptyList(), false, "гранта");
    }

    public void updateProjectDeadlines(Project project) {
-        eventRepository.deleteAll(eventRepository.findAllByProject(project));
+        eventRepository.delete(eventRepository.findAllByProject(project));
        createFromObject(project, Collections.emptyList(), false, "проекта");
    }

    public void removeConferencesEvent(Conference conference) {
        List<Event> eventList = eventRepository.findAllByConference(conference);
-        eventList.forEach(event -> eventRepository.deleteById(event.getId()));
+        eventList.forEach(event -> eventRepository.delete(event.getId()));
    }

    public void updateTaskDeadlines(Task task) {
-        eventRepository.deleteAll(eventRepository.findAllByTask(task));
+        eventRepository.delete(eventRepository.findAllByTask(task));
        createFromObject(task, Collections.emptyList(), true, "задачи");
    }
 }
--- a/src/main/java/ru/ulstu/timeline/service/TimelineService.java
+++ b/src/main/java/ru/ulstu/timeline/service/TimelineService.java
@ -48,13 +48,13 @@ public class TimelineService {

    @Transactional
    public Integer update(TimelineDto timelineDto) {
-        Timeline timeline = timelineRepository.getOne(timelineDto.getId());
+        Timeline timeline = timelineRepository.findOne(timelineDto.getId());
        return timelineRepository.save(copyFromDto(timeline, timelineDto)).getId();
    }

    @Transactional
    public void delete(Integer timelineId) {
-        Timeline timeline = timelineRepository.getOne(timelineId);
+        Timeline timeline = timelineRepository.findOne(timelineId);
        timelineRepository.delete(timeline);
    }
 }
--- a/Show More
+++ b/Show More