code: public void triggerPurge(final Runnable afterPurgeAction) {
  
          OpenCms.getExecutor().execute(new Runnable() {
  
              @SuppressWarnings("synthetic-access")
              public void run() {
  
                  try {
                      m_purgeLock.writeLock().lock();
                      for (ReentrantReadWriteLock lock : m_fileLocks.values()) {
                          lock.writeLock().lock();
                      }
                      doPurge(afterPurgeAction);
                  } catch (Exception e) {
                      LOG.error("Error while purging jsp repository: " + e.getLocalizedMessage(), e);
                  } finally {
                      for (ReentrantReadWriteLock lock : m_fileLocks.values()) {
                          try {
                              lock.writeLock().unlock();
                          } catch (Exception e) {
                              LOG.warn(e.getLocalizedMessage(), e);
                          }
                      }
                      m_purgeLock.writeLock().unlock();
                  }
              }
          });
      }
docs: Triggers an asynchronous purge of the JSP repository.<p>
  
  @param afterPurgeAction the action to execute after purging