fix build.gradle

build.gradle

@@ -13,10 +13,6 @@ apply plugin: 'idea'
 apply plugin: 'org.springframework.boot'
 apply plugin: 'io.spring.dependency-management'
 
-bootJar {
-    baseName = 'gs-serving-web-content'
-    version = '0.1.0'
-}
 
 repositories {
     mavenCentral()
@@ -26,13 +22,14 @@ sourceCompatibility = 17
 targetCompatibility = 17
 
 dependencies {
-    compile("org.springframework.boot:spring-boot-starter-web")
-    compile("org.springframework.boot:spring-boot-starter-thymeleaf")
-    compile("org.springframework.boot:spring-boot-devtools")
-    compile("org.springframework.boot:spring-boot-starter-data-jpa")
-    compile("com.h2database:h2")
-    compile("javax.xml.bind:jaxb-api:2.3.0")
-    compile("org.javassist:javassist:3.23.1-GA")
-    testCompile("junit:junit")
+    implementation group: 'org.springframework.boot', name: 'spring-boot-starter-web'
+    implementation group: 'org.springframework.boot', name: 'spring-boot-starter-thymeleaf'
+    implementation group: 'org.springframework.boot', name: 'spring-boot-devtools'
+    implementation group: 'org.springframework.boot', name: 'spring-boot-starter-data-jpa'
+    implementation group: 'com.h2database', name: 'h2'
+    implementation group: 'javax.xml.bind', name: 'jaxb-api'
+    implementation group: 'javax.validation', name: 'validation-api', version: '2.0.1.Final'
+    implementation group: 'javassist', name: 'javassist', version: '3.12.1.GA'
+    implementation group: 'junit', name: 'junit'
 }