Bugs item #854907, was opened at 2003-12-05 17:35 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=376685&aid=854907&group_id=22866
Category: JBossMX Group: v3.2 Status: Open Resolution: None Priority: 5 Submitted By: Brian Madigan (bmadigan2003) Assigned to: Nobody/Anonymous (nobody) Summary: NullPointerException in ModelMBeanInvoker at startup Initial Comment: I have defined an XMBean following the JBoss admin and developer guide examples (starting at Page 119) The XMBean descriptor validates ok against it's DTD, and I don't find any discrepancies between the descriptor and the implementing class. During initialization, the XMBean fails to start, throwing a NullPointerException during registration Relevant portion of the stack trace is below: [java] Caused by: java.lang.NullPointerException [java] at org.jboss.mx.modelmbean.ModelMBeanInvoker.preRegister(ModelMBeanInvoker.java:243) [java] at javax.management.modelmbean.RequiredModelMBean.preRegister(RequiredModelMBean.java:218) [java] at org.jboss.mx.modelmbean.ModelMBeanInvoker.preRegister(ModelMBeanInvoker.java:284) [java] at org.jboss.mx.server.registry.BasicMBeanRegistry.registerMBean(BasicMBeanRegistry.java:148) [java] at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source) [java] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [java] at java.lang.reflect.Method.invoke(Method.java:324) [java] at org.jboss.mx.capability.ReflectedMBeanDispatcher.invoke(ReflectedMBeanDispatcher.java:284) [java] at org.jboss.mx.interceptor.ObjectReferenceInterceptor.invoke(ObjectReferenceInterceptor.java:59) [java] at org.jboss.mx.interceptor.MBeanAttributeInterceptor.invoke(MBeanAttributeInterceptor.java:43) [java] at org.jboss.mx.interceptor.PersistenceInterceptor2.invoke(PersistenceInterceptor2.java:93) [java] at org.jboss.mx.server.MBeanInvoker.invoke(MBeanInvoker.java:75) [java] at javax.management.modelmbean.RequiredModelMBean.invoke(RequiredModelMBean.java:141) [java] at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:549) [java] at org.jboss.mx.server.MBeanServerImpl.registerMBean(MBeanServerImpl.java:994) [java] at org.jboss.mx.server.MBeanServerImpl.registerMBean(MBeanServerImpl.java:954) [java] at org.jboss.mx.server.MBeanServerImpl.createMBean(MBeanServerImpl.java:322) [java] at org.jboss.system.ServiceCreator.install(ServiceCreator.java:114) [java] at org.jboss.system.ServiceConfigurator.internalInstall(ServiceConfigurator.java:155) [java] at org.jboss.system.ServiceConfigurator.install(ServiceConfigurator.java:118) Poking around in the source code (3.2.1), the only two lines in preRegister( ) that are likely to be causing a nullPointerException are these: Descriptor mbeanDescriptor = infoSupport.getMBeanDescriptor(); mbeanDescriptor.setField(....... .... xmbean descriptor is attached. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=376685&aid=854907&group_id=22866 ------------------------------------------------------- This SF.net email is sponsored by: IBM Linux Tutorials. Become an expert in LINUX or just sharpen your skills. Sign up for IBM's Free Linux Tutorials. Learn everything from the bash shell to sys admin. Click now! http://ads.osdn.com/?ad_id=1278&alloc_id=3371&op=click _______________________________________________ JBoss-Development mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-development
