code: @Trivial
      @Override
      public synchronized void run() {
          clientSupport = null;
          if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) {
              Tr.debug(tc, "run : cached ClientSupport reference cleared");
          }
      }
docs: Scheduled Runnable implementation to reset the ClientSupport
  so that it will be obtained again later, in case the server
  is restarted.