ServerManagement.deInit();
   protected void tearDown() throws Exception   {            ServerManagement.setDefaultSecurityConfig(oldDefaultConfig);      ServerManagement.undeployQueue("testQueue");      ServerManagement.undeployQueue("testTopic");      ServerManagement.undeployTopic("securedTopic");      ServerManagement.undeployTopic("unsecuredTopic");      ServerManagement.deInit();   }