Program: 117825
Project: 117825
Buggy source:
@Override public void validateSyntax(){
  ISourceViewer sourceViewer=getSourceViewer();
  if (sourceViewer instanceof JavaSourceViewer) {
    this.getSourceViewer().getTextWidget().getDisplay().asyncExec(new Runnable(){
      @Override public void run(){
        placeCursorToSelection();
        Property property=process.getProperty();
        final ITalendSynchronizer synchronizer=CorePlugin.getDefault().getCodeGeneratorService().createRoutineSynchronizer();
        try {
          Item item=property.getItem();
          List<Information> informations=Problems.addRoutineFile(synchronizer.getFile(item),property,true);
          List<Information> testInformations=null;
          if (GlobalServiceRegister.getDefault().isServiceRegistered(ITestContainerProviderService.class)) {
            ITestContainerProviderService testContainerService=(ITestContainerProviderService)GlobalServiceRegister.getDefault().getService(ITestContainerProviderService.class);
            if (testContainerService != null) {
              testInformations=testContainerService.getTestContainerInformations(item);
            }
          }
          property.getInformations().clear();
          for (          Information info : informations) {
            if (info.getLevel().equals(InformationLevel.ERROR_LITERAL)) {
              property.getInformations().add(info);
            }
          }
          if (testInformations != null) {
            property.getInformations().addAll(testInformations);
          }
          Problems.computePropertyMaxInformationLevel(property,false);
        }
 catch (        SystemException e) {
          ExceptionHandler.process(e);
        }
        Problems.refreshProblemTreeView();
      }
    }
);
  }
}

Fixed version (ground truth):
@Override public void validateSyntax(){
  FileEditorInput fileEditorInput=(FileEditorInput)this.getEditorInput();
  IFile codeFile=fileEditorInput.getFile();
  if (!initialized) {
    this.setInput(new FileEditorInput(codeFile));
    initialized=true;
  }
  ISourceViewer sourceViewer=getSourceViewer();
  if (sourceViewer instanceof JavaSourceViewer) {
    this.getSourceViewer().getTextWidget().getDisplay().asyncExec(new Runnable(){
      @Override public void run(){
        placeCursorToSelection();
        Property property=process.getProperty();
        final ITalendSynchronizer synchronizer=CorePlugin.getDefault().getCodeGeneratorService().createRoutineSynchronizer();
        try {
          Item item=property.getItem();
          List<Information> informations=Problems.addRoutineFile(synchronizer.getFile(item),property,true);
          List<Information> testInformations=null;
          if (GlobalServiceRegister.getDefault().isServiceRegistered(ITestContainerProviderService.class)) {
            ITestContainerProviderService testContainerService=(ITestContainerProviderService)GlobalServiceRegister.getDefault().getService(ITestContainerProviderService.class);
            if (testContainerService != null) {
              testInformations=testContainerService.getTestContainerInformations(item);
            }
          }
          property.getInformations().clear();
          for (          Information info : informations) {
            if (info.getLevel().equals(InformationLevel.ERROR_LITERAL)) {
              property.getInformations().add(info);
            }
          }
          if (testInformations != null) {
            property.getInformations().addAll(testInformations);
          }
          Problems.computePropertyMaxInformationLevel(property,false);
        }
 catch (        SystemException e) {
          ExceptionHandler.process(e);
        }
        Problems.refreshProblemTreeView();
      }
    }
);
  }
}