Program: 124310
Project: 124310
Buggy source:
public void updateItemsList(final String path,boolean isneedUpdate){
  if (!isneedUpdate) {
    if (path.equals(lastPath)) {
      return;
    }
  }
  lastPath=path;
  if (path == null || path.length() == 0) {
    selectedItems=new ArrayList<ItemRecord>();
    checkTreeViewer.refresh(true);
    TreeItem topItem=checkTreeViewer.getTree().getTopItem();
    if (topItem != null) {
      checkTreeViewer.setSubtreeChecked(topItem.getData(),false);
    }
    checkValidItems();
    return;
  }
  final boolean dirSelected=this.itemFromDirectoryRadio.getSelection();
  try {
    getContainer().run(true,true,new IRunnableWithProgress(){
      public void run(      IProgressMonitor monitor){
        monitor.beginTask(DataTransferMessages.WizardProjectsImportPage_SearchingMessage,100);
        File directory=new File(path);
        monitor.worked(10);
        if (!dirSelected && ArchiveFileManipulations.isTarFile(path)) {
          TarFile sourceTarFile=getSpecifiedTarSourceFile(path);
          if (sourceTarFile == null) {
            return;
          }
          TarLeveledStructureProvider provider=new TarLeveledStructureProvider(sourceTarFile);
          manager=ResourcesManagerFactory.getInstance().createResourcesManager(provider);
          if (!manager.collectPath2Object(provider.getRoot())) {
            return;
          }
        }
 else         if (!dirSelected && ArchiveFileManipulations.isZipFile(path)) {
          ZipFile sourceFile=getSpecifiedZipSourceFile(path);
          if (sourceFile == null) {
            return;
          }
          ZipLeveledStructureProvider provider=new ZipLeveledStructureProvider(sourceFile);
          manager=ResourcesManagerFactory.getInstance().createResourcesManager(provider);
          if (!manager.collectPath2Object(provider.getRoot())) {
            return;
          }
        }
 else         if (dirSelected && directory.isDirectory()) {
          manager=ResourcesManagerFactory.getInstance().createResourcesManager();
          if (!manager.collectPath2Object(directory)) {
            return;
          }
        }
 else {
          monitor.worked(60);
        }
        monitor.done();
      }
    }
);
  }
 catch (  InvocationTargetException e) {
    IDEWorkbenchPlugin.log(e.getMessage(),e);
  }
catch (  InterruptedException e) {
  }
  populateItems();
}

Fixed version (ground truth):
public void updateItemsList(final String path,boolean isneedUpdate){
  if (!isneedUpdate) {
    if (path.equals(lastPath)) {
      return;
    }
  }
  lastPath=path;
  if (path == null || path.length() == 0) {
    selectedItems=new ArrayList<ItemRecord>();
    checkTreeViewer.refresh(true);
    TreeItem topItem=checkTreeViewer.getTree().getTopItem();
    if (topItem != null) {
      checkTreeViewer.setSubtreeChecked(topItem.getData(),false);
    }
    checkValidItems();
    return;
  }
  final boolean dirSelected=this.itemFromDirectoryRadio.getSelection();
  try {
    getContainer().run(true,true,new IRunnableWithProgress(){
      public void run(      IProgressMonitor monitor){
        monitor.beginTask(DataTransferMessages.WizardProjectsImportPage_SearchingMessage,100);
        File directory=new File(path);
        monitor.worked(10);
        if (!dirSelected && ArchiveFileManipulations.isTarFile(path)) {
          TarFile sourceTarFile=getSpecifiedTarSourceFile(path);
          if (sourceTarFile == null) {
            return;
          }
          TarLeveledStructureProvider provider=new TarLeveledStructureProvider(sourceTarFile);
          manager=ResourcesManagerFactory.getInstance().createResourcesManager(provider);
          if (!manager.collectPath2Object(provider.getRoot())) {
            return;
          }
        }
 else         if (!dirSelected && ArchiveFileManipulations.isZipFile(path)) {
          sourceFile=getSpecifiedZipSourceFile(path);
          if (sourceFile == null) {
            return;
          }
          ZipLeveledStructureProvider provider=new ZipLeveledStructureProvider(sourceFile);
          manager=ResourcesManagerFactory.getInstance().createResourcesManager(provider);
          if (!manager.collectPath2Object(provider.getRoot())) {
            return;
          }
        }
 else         if (dirSelected && directory.isDirectory()) {
          manager=ResourcesManagerFactory.getInstance().createResourcesManager();
          if (!manager.collectPath2Object(directory)) {
            return;
          }
        }
 else {
          monitor.worked(60);
        }
        monitor.done();
      }
    }
);
  }
 catch (  InvocationTargetException e) {
    IDEWorkbenchPlugin.log(e.getMessage(),e);
  }
catch (  InterruptedException e) {
  }
  populateItems();
}