Program: 123196
Project: 123196
Buggy source:
public void validateSyntax(){
  ISourceViewer sourceViewer=getSourceViewer();
  if (sourceViewer instanceof JavaSourceViewer) {
    this.getSourceViewer().getTextWidget().getDisplay().asyncExec(new Runnable(){
      public void run(){
        placeCursorToSelection();
        Property property=process.getProperty();
        ITalendSynchronizer synchronizer=CorePlugin.getDefault().getCodeGeneratorService().createRoutineSynchronizer();
        try {
          if (LanguageManager.getCurrentLanguage() == ECodeLanguage.JAVA) {
            try {
              CorePlugin.getDefault().getRunProcessService().getJavaProject().getProject().build(IncrementalProjectBuilder.AUTO_BUILD,null);
            }
 catch (            CoreException e) {
              ExceptionHandler.process(e);
            }
          }
          Item item=property.getItem();
          if (GlobalServiceRegister.getDefault().isServiceRegistered(ICamelDesignerCoreService.class)) {
            ICamelDesignerCoreService service=(ICamelDesignerCoreService)GlobalServiceRegister.getDefault().getService(ICamelDesignerCoreService.class);
            if (service.isInstanceofCamel(item)) {
              synchronizer=CorePlugin.getDefault().getCodeGeneratorService().createCamelBeanSynchronizer();
            }
          }
          List<Information> informations=Problems.addRoutineFile(synchronizer.getFile(item),property,true);
          property.getInformations().clear();
          for (          Information info : informations) {
            if (info.getLevel().equals(InformationLevel.ERROR_LITERAL)) {
              property.getInformations().add(info);
            }
          }
          Problems.computePropertyMaxInformationLevel(property);
        }
 catch (        SystemException e) {
          ExceptionHandler.process(e);
        }
        Problems.refreshRepositoryView();
        Problems.refreshProblemTreeView();
      }
    }
);
  }
}

Fixed version (ground truth):
@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();
        ITalendSynchronizer synchronizer=CorePlugin.getDefault().getCodeGeneratorService().createRoutineSynchronizer();
        try {
          if (LanguageManager.getCurrentLanguage() == ECodeLanguage.JAVA) {
            try {
              CorePlugin.getDefault().getRunProcessService().getJavaProject().getProject().build(IncrementalProjectBuilder.AUTO_BUILD,null);
            }
 catch (            CoreException e) {
              ExceptionHandler.process(e);
            }
          }
          Item item=property.getItem();
          if (GlobalServiceRegister.getDefault().isServiceRegistered(ICamelDesignerCoreService.class)) {
            ICamelDesignerCoreService service=(ICamelDesignerCoreService)GlobalServiceRegister.getDefault().getService(ICamelDesignerCoreService.class);
            if (service.isInstanceofCamel(item)) {
              synchronizer=CorePlugin.getDefault().getCodeGeneratorService().createCamelBeanSynchronizer();
            }
          }
          List<Information> informations=Problems.addRoutineFile(synchronizer.getFile(item),property,true);
          property.getInformations().clear();
          for (          Information info : informations) {
            if (info.getLevel().equals(InformationLevel.ERROR_LITERAL)) {
              property.getInformations().add(info);
            }
          }
          Problems.computePropertyMaxInformationLevel(property);
        }
 catch (        SystemException e) {
          ExceptionHandler.process(e);
        }
        Problems.refreshRepositoryView();
        Problems.refreshProblemTreeView();
      }
    }
);
  }
}