Program: 118803
Project: 118803
Buggy source:
@Override public void earlyStartup(){
  if (!startUnderPluginModel && !CorePlugin.getDefault().getRepositoryService().isRCPMode()) {
    return;
  }
  if (!GlobalServiceRegister.getDefault().isServiceRegistered(IRunProcessService.class)) {
    return;
  }
  final IWorkspaceRunnable op=new IWorkspaceRunnable(){
    @Override public void run(    IProgressMonitor monitor) throws CoreException {
      IRunProcessService processService=(IRunProcessService)GlobalServiceRegister.getDefault().getService(IRunProcessService.class);
      ITalendProcessJavaProject talendJavaProject=processService.getTalendProcessJavaProject();
      if (talendJavaProject != null) {
        IJavaProject jProject=talendJavaProject.getJavaProject();
        if (!jProject.isOpen()) {
          jProject.open(monitor);
        }
        IFolder srcFolder=talendJavaProject.getSrcFolder();
        talendJavaProject.cleanFolder(monitor,srcFolder);
        IFolder resourcesFolder=talendJavaProject.getResourcesFolder();
        emptyContexts(monitor,resourcesFolder,talendJavaProject);
        IFolder targetFolder=talendJavaProject.getTargetFolder();
        talendJavaProject.cleanFolder(monitor,targetFolder);
        IFolder testSrcFolder=talendJavaProject.getTestSrcFolder();
        talendJavaProject.cleanFolder(monitor,testSrcFolder);
        IFolder testResourcesFolder=talendJavaProject.getTestResourcesFolder();
        talendJavaProject.cleanFolder(monitor,testResourcesFolder);
        IFolder tempFolder=talendJavaProject.getTempFolder();
        talendJavaProject.cleanFolder(monitor,tempFolder);
        IFolder libFolder=talendJavaProject.getLibFolder();
        talendJavaProject.cleanFolder(monitor,libFolder);
        IFolder rulesResFolder=talendJavaProject.getResourceSubFolder(monitor,JavaUtils.JAVA_RULES_DIRECTORY);
        talendJavaProject.cleanFolder(monitor,rulesResFolder);
        IFolder sqlTemplateResFolder=talendJavaProject.getResourceSubFolder(monitor,JavaUtils.JAVA_SQLPATTERNS_DIRECTORY);
        talendJavaProject.cleanFolder(monitor,sqlTemplateResFolder);
      }
    }
  }
;
  IWorkspace workspace=ResourcesPlugin.getWorkspace();
  try {
    ISchedulingRule schedulingRule=workspace.getRoot();
    workspace.run(op,schedulingRule,IWorkspace.AVOID_UPDATE,new NullProgressMonitor());
  }
 catch (  CoreException e) {
    if (e.getCause() != null) {
      ExceptionHandler.process(e.getCause());
    }
 else {
      ExceptionHandler.process(e);
    }
  }
  executed=true;
}

Fixed version (ground truth):
@Override public void earlyStartup(){
  if (!startUnderPluginModel && !CorePlugin.getDefault().getRepositoryService().isRCPMode()) {
    return;
  }
  if (!GlobalServiceRegister.getDefault().isServiceRegistered(IRunProcessService.class)) {
    return;
  }
  IWorkspaceRoot root=ResourcesPlugin.getWorkspace().getRoot();
  IProject codeProject=root.getProject(TalendMavenConstants.PROJECT_NAME);
  if (!codeProject.exists() || !codeProject.isAccessible()) {
    return;
  }
  final IWorkspaceRunnable op=new IWorkspaceRunnable(){
    @Override public void run(    IProgressMonitor monitor) throws CoreException {
      IRunProcessService processService=(IRunProcessService)GlobalServiceRegister.getDefault().getService(IRunProcessService.class);
      ITalendProcessJavaProject talendJavaProject=processService.getTalendProcessJavaProject();
      if (talendJavaProject != null) {
        IJavaProject jProject=talendJavaProject.getJavaProject();
        if (!jProject.isOpen()) {
          jProject.open(monitor);
        }
        IFolder srcFolder=talendJavaProject.getSrcFolder();
        talendJavaProject.cleanFolder(monitor,srcFolder);
        IFolder resourcesFolder=talendJavaProject.getResourcesFolder();
        emptyContexts(monitor,resourcesFolder,talendJavaProject);
        IFolder targetFolder=talendJavaProject.getTargetFolder();
        talendJavaProject.cleanFolder(monitor,targetFolder);
        IFolder testSrcFolder=talendJavaProject.getTestSrcFolder();
        talendJavaProject.cleanFolder(monitor,testSrcFolder);
        IFolder testResourcesFolder=talendJavaProject.getTestResourcesFolder();
        talendJavaProject.cleanFolder(monitor,testResourcesFolder);
        IFolder tempFolder=talendJavaProject.getTempFolder();
        talendJavaProject.cleanFolder(monitor,tempFolder);
        IFolder libFolder=talendJavaProject.getLibFolder();
        talendJavaProject.cleanFolder(monitor,libFolder);
        IFolder rulesResFolder=talendJavaProject.getResourceSubFolder(monitor,JavaUtils.JAVA_RULES_DIRECTORY);
        talendJavaProject.cleanFolder(monitor,rulesResFolder);
        IFolder sqlTemplateResFolder=talendJavaProject.getResourceSubFolder(monitor,JavaUtils.JAVA_SQLPATTERNS_DIRECTORY);
        talendJavaProject.cleanFolder(monitor,sqlTemplateResFolder);
      }
    }
  }
;
  IWorkspace workspace=ResourcesPlugin.getWorkspace();
  try {
    ISchedulingRule schedulingRule=workspace.getRoot();
    workspace.run(op,schedulingRule,IWorkspace.AVOID_UPDATE,new NullProgressMonitor());
  }
 catch (  CoreException e) {
    if (e.getCause() != null) {
      ExceptionHandler.process(e.getCause());
    }
 else {
      ExceptionHandler.process(e);
    }
  }
  executed=true;
}