code: public void flushMessageCache() {
  
          // clear the cached message objects
          m_messages = new HashMap<Locale, CmsWorkplaceMessages>();
          if (LOG.isDebugEnabled()) {
              try {
                  throw new RuntimeException("Tracing exception");
              } catch (Exception e) {
                  LOG.info("Tracing call to CmsWorkplaceManager.flushMessageCache method.", e);
              }
          }
      }
docs: Flushes the cached workplace messages.<p>