ConcurrentModificationException while deploying MBeans
aseembansal May 4, 2004 11:57 AMHi,
I am trying to deploy my mbeans in JBoss micro kernel, but am getting this exception
Exception::-
org.jboss.deployment.DeploymentException: start operation failed on package file
:/C:/AppServers/JBoss/jboss-4.0.0DR2/server/minimal/conf/jboss-service.xml; - ne
sted throwable: (java.util.ConcurrentModificationException)
at org.jboss.deployment.SARDeployer.start(SARDeployer.java:235)
at org.jboss.deployment.DeploymentInfo.start(DeploymentInfo.java:255)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.
java:72)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:45)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:70)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.
java:155)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:544)
at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceControl
ler.java:1036)
at $Proxy1.start(Unknown Source)
at org.jboss.system.ServiceController.start(ServiceController.java:401)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.
java:72)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:45)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:70)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.
java:155)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:544)
at org.jboss.deployment.MainDeployer.start(MainDeployer.java:798)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:594)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:558)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:542)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.
java:72)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:45)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:70)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.
java:155)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:544)
at org.jboss.util.jmx.MBeanProxy.invoke(MBeanProxy.java:172)
at $Proxy7.deploy(Unknown Source)
at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:333)
at org.jboss.system.server.ServerImpl.start(ServerImpl.java:241)
at org.jboss.Main.boot(Main.java:165)
at org.jboss.Main$1.run(Main.java:403)
at java.lang.Thread.run(Thread.java:536)
Caused by: java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry(HashMap.java:762)
at java.util.HashMap$KeyIterator.next(HashMap.java:798)
at org.jboss.system.ServiceController.start(ServiceController.java:425)
at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.
java:72)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:45)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:70)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.
java:155)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:544)
at org.jboss.util.jmx.MBeanProxy.invoke(MBeanProxy.java:172)
at $Proxy6.start(Unknown Source)
at org.jboss.deployment.SARDeployer.start(SARDeployer.java:227)
... 42 more
22:07:42,328 ERROR [MainDeployer] could not start deployment: file:/C:/AppServer
s/JBoss/jboss-4.0.0DR2/server/minimal/conf/jboss-service.xml
MBeanException: org.jboss.deployment.DeploymentException: start operation failed
on package file:/C:/AppServers/JBoss/jboss-4.0.0DR2/server/minimal/conf/jboss-s
ervice.xml; - nested throwable: (java.util.ConcurrentModificationException)
Cause: org.jboss.deployment.DeploymentException: start operation failed on packa
ge file:/C:/AppServers/JBoss/jboss-4.0.0DR2/server/minimal/conf/jboss-service.xm
l; - nested throwable: (java.util.ConcurrentModificationException)
at org.jboss.mx.server.ReflectedDispatcher.handleInvocationExceptions(Re
flectedDispatcher.java:103)
at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.
java:76)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:45)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:70)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.
java:155)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:544)
at org.jboss.deployment.MainDeployer.start(MainDeployer.java:798)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:594)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:558)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:542)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.
java:72)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:45)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:70)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.
java:155)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:544)
at org.jboss.util.jmx.MBeanProxy.invoke(MBeanProxy.java:172)
at $Proxy7.deploy(Unknown Source)
at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:333)
at org.jboss.system.server.ServerImpl.start(ServerImpl.java:241)
at org.jboss.Main.boot(Main.java:165)
at org.jboss.Main$1.run(Main.java:403)
at java.lang.Thread.run(Thread.java:536)
Caused by: org.jboss.deployment.DeploymentException: start operation failed on p
ackage file:/C:/AppServers/JBoss/jboss-4.0.0DR2/server/minimal/conf/jboss-servic
e.xml; - nested throwable: (java.util.ConcurrentModificationException)
at org.jboss.deployment.SARDeployer.start(SARDeployer.java:235)
at org.jboss.deployment.DeploymentInfo.start(DeploymentInfo.java:255)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.
java:72)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:45)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:70)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.
java:155)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:544)
at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceControl
ler.java:1036)
at $Proxy1.start(Unknown Source)
at org.jboss.system.ServiceController.start(ServiceController.java:401)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
JBoss Version ::
==========
22:06:37,109 INFO [Server] Release ID: JBoss [Matrix2] 4.0.0DR2 (build: CVSTag=
JBoss_4_0_0_DR2 date=200307030107)
Relevant parts of Jboss-service.xml
=======================
<!-- Obj Mgr -->
<!-- Obj Mgr2 -->
<!-- Object A -->
<depends optional-attribute-name="ManagerObj">MyDomain:name=objmgr
<depends optional-attribute-name="MangerObj2">MyDomain:name=objmgr2
<!-- Object B -->
<depends optional-attribute-name="ManagerObj">MyDomain:name=objmgr
<depends optional-attribute-name="MangerObj2">MyDomain:name=objmgr2
Seems like its something to do with the same dependencies of Object A and Object B as object A can deployed if Object B is removed from the xml and vice-versa.
Any clues ?
-A