Better check

src/main/java/at/ac/uibk/gitsearch/service/dto/SearchResultsDTO.java

@@ -76,7 +76,7 @@ public class SearchResultsDTO {
 				return true;
 			if (obj == null)
 				return false;
-			if (!getClass().isAssignableFrom(obj.getClass())  )
+			if (!(obj instanceof Person))
 				return false;
 			Person other = (Person) obj;
 			if (affiliation == null) {
@@ -206,7 +206,7 @@ public class SearchResultsDTO {
 				return true;
 			if (obj == null)
 				return false;
-			if (!getClass().isAssignableFrom(obj.getClass())  )
+			if (!(obj instanceof GitProject))
 				return false;
 			GitProject other = (GitProject) obj;
 			if (project_id != other.project_id)