Program: 125227
Project: 125227
Buggy source:
private Set<ModuleNeeded> getAllModuleNeededWithTestCase() throws PersistenceException {
  Set<ModuleNeeded> neededLibraries=new HashSet<>();
  boolean needTestCase=false;
  List<ProcessItem> testContainers=null;
  ProcessItem item=null;
  if (processor.getProperty() != null && processor.getProperty().getItem() instanceof ProcessItem) {
    item=(ProcessItem)processor.getProperty().getItem();
  }
  ITestContainerProviderService testContainerService=null;
  if (GlobalServiceRegister.getDefault().isServiceRegistered(ITestContainerProviderService.class)) {
    testContainerService=(ITestContainerProviderService)GlobalServiceRegister.getDefault().getService(ITestContainerProviderService.class);
    if (item != null) {
      boolean isTestCase=testContainerService.isTestContainerItem(item);
      boolean isLatestJob=false;
      if (isTestCase) {
        item=(ProcessItem)testContainerService.getParentJobItem(item);
      }
 else {
        IRepositoryViewObject object=ProxyRepositoryFactory.getInstance().getLastVersion(item.getProperty().getId());
        if (object != null && VersionUtils.compareTo(item.getProperty().getVersion(),object.getVersion()) == 0) {
          isLatestJob=true;
        }
      }
      if (isTestCase || isLatestJob) {
        testContainers=testContainerService.getAllTestContainers(item);
        getAllLatestTestContainers(testContainers);
        if (testContainers != null && !testContainers.isEmpty()) {
          needTestCase=true;
        }
      }
    }
  }
  Collection<ModuleNeeded> modulesNeeded=LastGenerationInfo.getInstance().getModulesNeededPerJob(processor.getProcess().getId(),processor.getProcess().getVersion());
  if (modulesNeeded.isEmpty()) {
    modulesNeeded=processor.getNeededModules(TalendProcessOptionConstants.MODULES_WITH_JOBLET);
  }
  neededLibraries.addAll(modulesNeeded);
  if (needTestCase) {
    for (    ProcessItem testcaseItem : testContainers) {
      IProcess testcaseProcess=getDesignerCoreService().getProcessFromProcessItem(testcaseItem);
      neededLibraries.addAll(testcaseProcess.getNeededModules(TalendProcessOptionConstants.MODULES_DEFAULT));
    }
    if (GlobalServiceRegister.getDefault().isServiceRegistered(ILibraryManagerService.class)) {
      ILibraryManagerService repositoryBundleService=(ILibraryManagerService)GlobalServiceRegister.getDefault().getService(ILibraryManagerService.class);
      repositoryBundleService.installModules(neededLibraries,null);
    }
  }
  return neededLibraries;
}

Fixed version (ground truth):
private Set<ModuleNeeded> getAllModuleNeededWithTestCase() throws PersistenceException {
  Set<ModuleNeeded> neededLibraries=new HashSet<>();
  Collection<ModuleNeeded> modulesNeeded=LastGenerationInfo.getInstance().getModulesNeededPerJob(processor.getProcess().getId(),processor.getProcess().getVersion());
  if (modulesNeeded.isEmpty()) {
    modulesNeeded=processor.getNeededModules(TalendProcessOptionConstants.MODULES_WITH_JOBLET);
  }
  neededLibraries.addAll(modulesNeeded);
  if (GlobalServiceRegister.getDefault().isServiceRegistered(ITestContainerProviderService.class)) {
    ITestContainerProviderService testcontainerService=(ITestContainerProviderService)GlobalServiceRegister.getDefault().getService(ITestContainerProviderService.class);
    Set<ModuleNeeded> testcaseModules=null;
    if (processor.getProperty() != null && processor.getProperty().getItem() instanceof ProcessItem) {
      ProcessItem item=(ProcessItem)processor.getProperty().getItem();
      testcaseModules=testcontainerService.getAllJobTestcaseModules(item);
      neededLibraries.addAll(testcaseModules);
      if (testcaseModules != null) {
        if (GlobalServiceRegister.getDefault().isServiceRegistered(ILibraryManagerService.class)) {
          ILibraryManagerService repositoryBundleService=(ILibraryManagerService)GlobalServiceRegister.getDefault().getService(ILibraryManagerService.class);
          repositoryBundleService.installModules(neededLibraries,null);
        }
      }
    }
  }
  return neededLibraries;
}