code: @Override
      public void serverStopping() {
          if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) {
              Tr.debug(tc, "Server is stopping");
          }
          WebContainer wc = (WebContainer) WebContainer.getWebContainer();
          WebContainer.setServerStopping(true);
          if (wc!=null) wc.waitForApplicationInitialization();
      }
docs: /* (non-Javadoc)
  @see com.ibm.wsspi.kernel.service.utils.ServerQuiesceListener#serverStopping()