added resilience against incomplete test results

src/main/java/de/hftstuttgart/dtabackend/utils/CompetencyAssessmentUtil.java

@@ -45,11 +45,13 @@ public class CompetencyAssessmentUtil {
 		for(Result currentResult: resultSummary.results) {
 			if(currentResult.state==Result.State.SUCCESS.ordinal()) {
 				TestCompetencyProfile currentProfile=new TestCompetencyProfile();
-				currentProfile.testPackageName=currentResult.packageName;
-				currentProfile.testClassName=currentResult.className;
-				currentProfile.testName=currentResult.name;
+				currentProfile.testPackageName=(currentResult.packageName!=null)?currentResult.packageName:"";
+				currentProfile.testClassName=(currentResult.className!=null)?currentResult.className:"";
+				currentProfile.testName=(currentResult.name!=null)?currentResult.name:"";
 				int testIndex=testCompetencyProfiles.indexOf(currentProfile);
-				sumSuccessful=TestCompetencyProfile.competencySum(sumSuccessful, testCompetencyProfiles.get(testIndex).competencyAssessments);
+				if(testIndex!=-1) {
+					sumSuccessful=TestCompetencyProfile.competencySum(sumSuccessful, testCompetencyProfiles.get(testIndex).competencyAssessments);
+				}
 			}
 		}
 		return sumSuccessful;