public LibrarySearchHelper getLibrarySearchHelper() {
    if (myLibrarySearchHelper == null) {
      try {
        myLibrarySearchHelper = ApplicationManager.getApplication().instantiateClass(librarySearchClass, getPluginDescriptor());
      }
      catch (ProcessCanceledException e) {
        throw e;
      }
      catch (Exception e) {
        Logger.getInstance(LibraryDependentToolWindow.class).error(e);
        return null;
      }
    }
    return myLibrarySearchHelper;
  }
public LibrarySearchHelper getLibrarySearchHelper()