2 Replies Latest reply on Aug 28, 2018 8:41 AM by vinodhan

    Jboss EAP 7.1 ServiceModuleLoader returning null

    vinodhan
    vinodhan Aug 27, 2018 9:40 AM

      I'm using Jboss EAP 7.1 and when i try to dumpAllModuleInformation from ServiceModuleLoader, i'm getting null pointer exception, however i could see results for LocalModuleLoader. Attaching the Stack Trace below.

      Basically i'm trying to see all loaded resources for my war file. I'm really not sure what's the reason for null pointer exception. All other operations like dumpModuleInformation, getDependencies, getModuleDescription, getModulesPathInfo, refreshResourceLoaders, relink and unLoadModule throwing IllegalArguementException: Module specification is null. Only queryLoadedModuleNames is returning my war filenames. Application is running fine without any issues. Jconsole is also throwing the same exception. I need to find a way to see all loaded jars for my war file. Standalone server is hosted with multiple war files, so planning to write a JMX program to get loaded dependencies for all of my wars/ears. Can you guys help me on this

      javax.management.RuntimeMBeanException: java.lang.NullPointerException
      at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:839)

      at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:852)

      at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:821)

      at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)

      at org.jboss.as.jmx.PluggableMBeanServerImpl$TcclMBeanServer.invoke(PluggableMBeanServerImpl.java:1503)

      at org.jboss.as.jmx.PluggableMBeanServerImpl.invoke(PluggableMBeanServerImpl.java:724)

      at org.jboss.as.jmx.BlockingNotificationMBeanServer.invoke(BlockingNotificationMBeanServer.java:168)

      at org.jboss.remotingjmx.protocol.v2.ServerProxy$InvokeHandler.handle(ServerProxy.java:950)

      at org.jboss.remotingjmx.protocol.v2.ServerCommon$MessageReciever$1$1.run(ServerCommon.java:153)

      at org.jboss.as.jmx.ServerInterceptorFactory$Interceptor$1.run(ServerInterceptorFactory.java:75)

      at org.jboss.as.jmx.ServerInterceptorFactory$Interceptor$1.run(ServerInterceptorFactory.java:70)

      at java.security.AccessController.doPrivileged(Native Method)

      at javax.security.auth.Subject.doAs(Subject.java:422)

      at org.jboss.as.controller.AccessAuditContext.doAs(AccessAuditContext.java:92)

      at org.jboss.as.jmx.ServerInterceptorFactory$Interceptor.handleEvent(ServerInterceptorFactory.java:70)

      at org.jboss.remotingjmx.protocol.v2.ServerCommon$MessageReciever$1.run(ServerCommon.java:149)

      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

      at java.lang.Thread.run(Thread.java:745)

      Caused by: java.lang.NullPointerException
      at org.jboss.modules.ModuleLoader$MXBeanImpl.doGetResourceLoaders(ModuleLoader.java:857)

      at org.jboss.modules.ModuleLoader$MXBeanImpl.getModuleDescription(ModuleLoader.java:866)

      at org.jboss.modules.ModuleLoader$MXBeanImpl.doDumpModuleInformation(ModuleLoader.java:737)

      at org.jboss.modules.ModuleLoader$MXBeanImpl.dumpAllModuleInformation(ModuleLoader.java:725)

      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

      at java.lang.reflect.Method.invoke(Method.java:498)

      at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)

      at sun.reflect.GeneratedMethodAccessor13.invoke(Unknown Source