#26-Removing null from lineChange

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

@@ -250,22 +250,32 @@ public class GitRepositoryService {
                     while ((i < stringsLength) && strings[i].startsWith("-")) {
                         if (strings[i].startsWith("---")) {
                             i++;
+                        } else {
+                            if (lineChange.getLineFrom() == null) {
+                                lineChange.setLineFrom(strings[i]);
+                                i++;
                             } else {
                                 lineChange.setLineFrom(lineChange.getLineFrom() + "\n" + strings[i]);
                                 i++;
                             }
                         }
                     }
+                }
                 if (strings[i].startsWith("+")) {
                     while ((i < stringsLength) && strings[i].startsWith("+")) {
                         if (strings[i].startsWith("+++")) {
                             i++;
+                        } else {
+                            if (lineChange.getLineTo() == null) {
+                                lineChange.setLineTo(strings[i]);
+                                i++;
                             } else {
                                 lineChange.setLineTo(lineChange.getLineTo() + "\n" + strings[i]);
                                 i++;
                             }
                         }
                     }
+                }
                 if ((lineChange.getLineTo() != null) || (lineChange.getLineFrom() != null)
                         || ((lineChange.getLineTo() != null) && (lineChange.getLineFrom() != null))) {
                     fileChange.getLineChanges().add(lineChange);