Program: 10655
Project: 10655
Buggy source:
@Override public boolean performDrop(final Object data){
  final String jobName="String_Node_Str";
  UIJob job=new UIJob(jobName){
    @Override public IStatus runInUIThread(    IProgressMonitor monitor){
      if (data instanceof IStructuredSelection) {
        Object modObj=((IStructuredSelection)data).getFirstElement();
        IProject prj=null;
        if (modObj instanceof IProject) {
          prj=(IProject)modObj;
        }
 else         if (modObj instanceof IJavaProject) {
          prj=((IJavaProject)modObj).getProject();
        }
        if (prj != null) {
          final IProject project=prj;
          final CloudFoundryServer cloudServer=(CloudFoundryServer)editorPage.getServer().getOriginal().loadAdapter(CloudFoundryServer.class,monitor);
          if (cloudServer != null) {
            ApplicationViewersDropAdapter.super.performDrop(data);
            Job job=new Job(jobName){
              @Override protected IStatus run(              IProgressMonitor monitor){
                cloudServer.getBehaviour().publishAdd(project.getName(),monitor);
                return Status.OK_STATUS;
              }
            }
;
            job.setPriority(Job.INTERACTIVE);
            job.schedule();
            return Status.OK_STATUS;
          }
        }
      }
      return Status.CANCEL_STATUS;
    }
  }
;
  job.schedule();
  return true;
}

Fixed version (ground truth):
@Override public boolean performDrop(final Object data){
  final String jobName="String_Node_Str";
  UIJob job=new UIJob(jobName){
    @Override public IStatus runInUIThread(    IProgressMonitor monitor){
      if (data instanceof IStructuredSelection) {
        Object modObj=((IStructuredSelection)data).getFirstElement();
        IProject prj=null;
        if (modObj instanceof IProject) {
          prj=(IProject)modObj;
        }
 else         if (modObj instanceof IJavaProject) {
          prj=((IJavaProject)modObj).getProject();
        }
        if (prj != null) {
          final CloudFoundryServer cloudServer=(CloudFoundryServer)editorPage.getServer().getOriginal().loadAdapter(CloudFoundryServer.class,monitor);
          if (cloudServer != null) {
            final String moduleName=prj.getName();
            if (cloudServer.getBehaviour().existCloudApplicationModule(moduleName)) {
              Display.getDefault().asyncExec(new Runnable(){
                public void run(){
                  MessageDialog.openError(editorPage.getSite().getShell(),"String_Node_Str",NLS.bind("String_Node_Str",moduleName,"String_Node_Str"));
                }
              }
);
              return Status.CANCEL_STATUS;
            }
            ApplicationViewersDropAdapter.super.performDrop(data);
            Job job=new Job(jobName){
              @Override protected IStatus run(              IProgressMonitor monitor){
                cloudServer.getBehaviour().publishAdd(moduleName,monitor);
                return Status.OK_STATUS;
              }
            }
;
            job.setPriority(Job.INTERACTIVE);
            job.schedule();
            return Status.OK_STATUS;
          }
        }
      }
      return Status.CANCEL_STATUS;
    }
  }
;
  job.schedule();
  return true;
}