getting data output right

src/main/java/ru/ulstu/extractor/GitRepositoryService.java

@@ -106,7 +106,7 @@ public class GitRepositoryService {
         Changes changes = new Changes();
         String[] strings = output.split("\n");
         FileChange fileChange = new FileChange();
-        int stringsLength = strings.length;
+        int stringsLength = strings.length - 1;
         for (int i = 0; i < strings.length; i++) {
             while (i < stringsLength) {
                 Optional<String> maybeFileName = getFileName(strings[i]);
@@ -129,11 +129,12 @@ public class GitRepositoryService {
                         i++;
                     }
                 }
-                if ((lineChange.getLineTo() != null && lineChange.getLineTo().isEmpty())
-                        || (lineChange.getLineFrom() != null && lineChange.getLineFrom().isEmpty())) {
+                if ((lineChange.getLineTo() != null) || (lineChange.getLineFrom() != null)
+                        || ((lineChange.getLineTo() != null) && (lineChange.getLineFrom() != null))) {
                     fileChange.getLineChanges().add(lineChange);
+                } else {
+                    i++;
                 }
-                i++;
             }
         }
         return changes;