Program: 125101
Project: 125101
Buggy source:
private boolean checkHDFSConnection(final HDFSConnection connection){
  final boolean[] result=new boolean[]{true};
  IRunnableWithProgress runnableWithProgress=new IRunnableWithProgress(){
    @Override public void run(    final IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
      monitor.beginTask(Messages.getString("String_Node_Str"),IProgressMonitor.UNKNOWN);
      final Object[] dfs=new Object[1];
      Display.getDefault().syncExec(new Runnable(){
        @Override public void run(){
          try {
            HDFSConnectionBean connectionBean=HDFSModelUtil.convert2HDFSConnectionBean(connection);
            dfs[0]=HadoopOperationManager.getInstance().getDFS(connectionBean);
          }
 catch (          Exception e) {
            ExceptionHandler.process(e);
          }
 finally {
            monitor.done();
          }
        }
      }
);
      if (dfs[0] == null) {
        PlatformUI.getWorkbench().getDisplay().syncExec(new Runnable(){
          @Override public void run(){
            String mainMsg=Messages.getString("String_Node_Str");
            String detailMsg=Messages.getString("String_Node_Str");
            new ErrorDialogWidthDetailArea(PlatformUI.getWorkbench().getDisplay().getActiveShell(),Activator.PLUGIN_ID,mainMsg,detailMsg);
            result[0]=false;
            return;
          }
        }
);
      }
    }
  }
;
  ProgressMonitorDialog dialog=new ProgressMonitorDialog(PlatformUI.getWorkbench().getDisplay().getActiveShell());
  try {
    dialog.run(true,true,runnableWithProgress);
  }
 catch (  Exception e) {
    result[0]=false;
    ExceptionHandler.process(e);
  }
  return result[0];
}

Fixed version (ground truth):
private boolean checkHDFSConnection(final HDFSConnection connection){
  final boolean[] result=new boolean[]{true};
  IRunnableWithProgress runnableWithProgress=new IRunnableWithProgress(){
    @Override public void run(    final IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
      monitor.beginTask(Messages.getString("String_Node_Str"),IProgressMonitor.UNKNOWN);
      final Object[] dfs=new Object[1];
      Display display=PlatformUI.getWorkbench().getDisplay();
      display.syncExec(new Runnable(){
        @Override public void run(){
          try {
            HDFSConnectionBean connectionBean=HDFSModelUtil.convert2HDFSConnectionBean(connection);
            dfs[0]=HadoopOperationManager.getInstance().getDFS(connectionBean);
          }
 catch (          Exception e) {
            ExceptionHandler.process(e);
          }
 finally {
            monitor.done();
          }
        }
      }
);
      if (dfs[0] == null) {
        display.syncExec(new Runnable(){
          @Override public void run(){
            String mainMsg=Messages.getString("String_Node_Str");
            String detailMsg=Messages.getString("String_Node_Str");
            new ErrorDialogWidthDetailArea(PlatformUI.getWorkbench().getDisplay().getActiveShell(),Activator.PLUGIN_ID,mainMsg,detailMsg);
            result[0]=false;
            return;
          }
        }
);
      }
    }
  }
;
  ProgressMonitorDialog dialog=new ProgressMonitorDialog(PlatformUI.getWorkbench().getDisplay().getActiveShell());
  try {
    dialog.run(true,true,runnableWithProgress);
  }
 catch (  Exception e) {
    result[0]=false;
    ExceptionHandler.process(e);
  }
  return result[0];
}