@Nullable
  public static synchronized JspSupportProxy getInstance() {
    if (isInitialized) {
      return ourInstance;
    }
    try {
      return ourInstance = ApplicationManager.getApplication().getService(JspSupportProxy.class);
    }
    finally {
      isInitialized = true;
    }
  }
@Nullable
  public static synchronized JspSupportProxy getInstance()