code: public void popContextClassLoaderForUnprivileged(Object origLoader) {
          if (origLoader != UNCHANGED) {
              setContextClassLoaderForUnprivileged(Thread.currentThread(), (ClassLoader) origLoader);
          }
      }
docs: Resets the context class loader of the current thread after a call to {@link #pushContextClassLoaderForUnprivileged} or {@link #repushContextClassLoaderForUnprivileged}.
  This method does
  nothing if the specified class loader is {@link #UNCHANGED}. Otherwise,
  this method is equivalent to calling {@link #setContextClassLoaderForUnprivileged}
  
  @param origLoader the result of {@link #pushContextClassLoaderForUnprivileged} or {@link #repushContextClassLoaderForUnprivileged}