Program: 10693
Project: 10693
Buggy source:
protected void internalDeleteModules(final IModule[] modules,final boolean deleteServices,IProgressMonitor monitor) throws CoreException {
  final CloudFoundryServer cloudServer=getCloudFoundryServer();
  new BehaviourRequest<Void>("String_Node_Str"){
    @Override protected Void doRun(    CloudFoundryOperations client,    SubMonitor progress) throws CoreException {
      for (      IModule module : modules) {
        final CloudFoundryApplicationModule appModule=cloudServer.getExistingCloudModule(module);
        if (appModule == null) {
          continue;
        }
        List<String> servicesToDelete=new ArrayList<String>();
        CloudApplication application=client.getApplication(appModule.getDeployedApplicationName());
        List<String> actualServices=application.getServices();
        if (actualServices != null) {
          for (          String serviceName : actualServices) {
            if (serviceName != null) {
              servicesToDelete.add(serviceName);
            }
          }
        }
        if (TunnelBehaviour.isCaldecottApp(appModule.getDeployedApplicationName())) {
          new TunnelBehaviour(cloudServer).stopAndDeleteAllTunnels(progress);
        }
        client.deleteApplication(appModule.getDeployedApplicationName());
        CloudFoundryPlugin.getCallback().stopApplicationConsole(appModule,cloudServer);
        cloudServer.removeApplication(appModule);
        appModule.setCloudApplication(null);
        if (deleteServices && !servicesToDelete.isEmpty()) {
          CloudFoundryPlugin.getCallback().deleteServices(servicesToDelete,cloudServer);
          ServerEventHandler.getDefault().fireServicesUpdated(cloudServer);
        }
      }
      return null;
    }
  }
.run(monitor);
}

Fixed version (ground truth):
protected void internalDeleteModules(final IModule[] modules,final boolean deleteServices,IProgressMonitor monitor) throws CoreException {
  final CloudFoundryServer cloudServer=getCloudFoundryServer();
  List<CloudApplication> updatedApplications=getApplications(monitor);
  for (  IModule module : modules) {
    final CloudFoundryApplicationModule appModule=cloudServer.getExistingCloudModule(module);
    if (appModule == null) {
      continue;
    }
    List<String> servicesToDelete=new ArrayList<String>();
    CloudApplication application=null;
    if (updatedApplications != null) {
      for (      CloudApplication app : updatedApplications) {
        if (app.getName().equals(appModule.getDeployedApplicationName())) {
          application=app;
          break;
        }
      }
    }
    if (application != null) {
      List<String> actualServices=application.getServices();
      if (actualServices != null) {
        for (        String serviceName : actualServices) {
          if (serviceName != null) {
            servicesToDelete.add(serviceName);
          }
        }
      }
      deleteApplication(application.getName(),monitor);
    }
    CloudFoundryPlugin.getCallback().stopApplicationConsole(appModule,cloudServer);
    cloudServer.removeApplication(appModule);
    appModule.setCloudApplication(null);
    if (deleteServices && !servicesToDelete.isEmpty()) {
      CloudFoundryPlugin.getCallback().deleteServices(servicesToDelete,cloudServer);
      ServerEventHandler.getDefault().fireServicesUpdated(cloudServer);
    }
  }
}