Program: 88746
Project: 88746
Buggy source:
/** 
 * Executes the rule.
 * @param project    project of the constraint.
 * @param constraint constraint that defines validation rules.
 * @param elements   collection of elements to validate.
 * @return			 a set of <code>Annotation</code> objects which specify invalid objects.
 */
@Override public Set<Annotation> run(Project project,Constraint constraint,Collection<? extends Element> elements){
  Set<Annotation> result=new HashSet<Annotation>();
  Collection<DiagramPresentationElement> projectDiagrams=project.getDiagrams();
  for (  DiagramPresentationElement currDiagram : projectDiagrams) {
    PresentationElement requester=locateTarget(currDiagram,project);
    if (requester == null) {
      continue;
    }
    Collection<DiagramPresentationElement> patternDiags=PatternLoaderUtils.getPatternDiagrams(requester);
    PatternSaver ps=new PatternSaver();
    ps.savePattern(project,patternDiags.iterator().next());
    JSONObject pattern=ps.getPattern();
    Diagram requesterDiagramElem=(Diagram)project.getElementByID(requester.getElement().getID());
    DiagramPresentationElement requesterDiag=project.getDiagram(requesterDiagramElem);
    String style=ViewSaver.save(project,requesterDiag,true);
    JSONParser parser=new JSONParser();
    Object parsedStyle=null;
    try {
      parsedStyle=parser.parse(style);
    }
 catch (    ParseException e) {
      e.printStackTrace();
      return null;
    }
    JSONObject styleObj=(JSONObject)parsedStyle;
    HashSet<String> badElemTypes=new HashSet<String>();
    for (    PresentationElement elem : requesterDiag.getPresentationElements()) {
      String unparsedElemStyle=(String)styleObj.get(elem.getID());
      String elemStyle=PatternLoaderUtils.removeUnnecessaryProperties(unparsedElemStyle);
      String elemType=elem.getHumanType();
      String patternStyle=(String)pattern.get(elemType);
      boolean styleMatch=elemStyle.equals(patternStyle);
      if (!styleMatch) {
        badElemTypes.add(elemType);
      }
    }
    if (!badElemTypes.isEmpty()) {
      NMAction patternMismatchSelect=new FixPatternMismatchSelect(requesterDiag,pattern,badElemTypes);
      NMAction patternMismatchAll=new FixPatternMismatchAll(requesterDiag,pattern);
      List<NMAction> actionList=new ArrayList<NMAction>();
      actionList.add(patternMismatchAll);
      actionList.add(patternMismatchSelect);
      Annotation annotation=new Annotation(requesterDiag,constraint,actionList);
      result.add(annotation);
    }
  }
  Application.getInstance().getGUILog().log("String_Node_Str");
  return result;
}

Fixed version (ground truth):
/** 
 * Executes the rule.
 * @param project    project of the constraint.
 * @param constraint constraint that defines validation rules.
 * @param elements   collection of elements to validate.
 * @return			 a set of <code>Annotation</code> objects which specify invalid objects.
 */
@Override public Set<Annotation> run(Project project,Constraint constraint,Collection<? extends Element> elements){
  Set<Annotation> result=new HashSet<Annotation>();
  Collection<DiagramPresentationElement> projectDiagrams=project.getDiagrams();
  for (  DiagramPresentationElement currDiagram : projectDiagrams) {
    PresentationElement requester=locateTarget(currDiagram,project);
    if (requester == null) {
      continue;
    }
    Collection<DiagramPresentationElement> patternDiags=PatternLoaderUtils.getPatternDiagrams(requester);
    PatternSaver ps=new PatternSaver();
    ps.savePattern(project,patternDiags.iterator().next());
    JSONObject pattern=ps.getPattern();
    Diagram requesterDiagramElem=(Diagram)project.getElementByID(requester.getElement().getID());
    DiagramPresentationElement requesterDiag=project.getDiagram(requesterDiagramElem);
    String style=ViewSaver.save(project,requesterDiag,true);
    JSONParser parser=new JSONParser();
    Object parsedStyle=null;
    try {
      parsedStyle=parser.parse(style);
    }
 catch (    ParseException e) {
      e.printStackTrace();
      return null;
    }
    JSONObject styleObj=(JSONObject)parsedStyle;
    HashSet<String> badElemTypes=new HashSet<String>();
    for (    PresentationElement elem : requesterDiag.getPresentationElements()) {
      String unparsedElemStyle=(String)styleObj.get(elem.getID());
      String elemStyle=PatternLoaderUtils.removeUnnecessaryProperties(unparsedElemStyle);
      String elemType=elem.getHumanType();
      String patternStyle=(String)pattern.get(elemType);
      boolean styleMatch=elemStyle.equals(patternStyle);
      if (!styleMatch) {
        badElemTypes.add(elemType);
      }
    }
    if (!badElemTypes.isEmpty()) {
      NMAction patternMismatchSelect=new FixPatternMismatchSelect(project,requesterDiag,pattern,badElemTypes);
      NMAction patternMismatchAll=new FixPatternMismatchAll(requesterDiag,pattern);
      List<NMAction> actionList=new ArrayList<NMAction>();
      actionList.add(patternMismatchAll);
      actionList.add(patternMismatchSelect);
      Annotation annotation=new Annotation(requesterDiag,constraint,actionList);
      result.add(annotation);
    }
  }
  Application.getInstance().getGUILog().log("String_Node_Str");
  return result;
}