Description of problem: $Summary Version-Release number of selected component (if applicable): Version: 4.7.0-SNAPSHOT Build Number: 6a32fb9 How reproducible: Alwasy Steps to Reproduce: 1. invoke agent's operation 'Update All Plugins' 2. invoke immediately agent's operation 'Get Current Date/Time' Actual results: When the operation 'Get Current Date/Time' hits the Plugin container shutdown process, following exception is thrown: org.rhq.core.clientapi.agent.PluginContainerException: Failed to submit invocation request. resource=[10005], operation=[retrieveCurrentDateTime], jobId=[rhq-resource-10005--1019068328-1363870127475_=_rhq-resource-10005_=_1363870127699] at org.rhq.core.pc.operation.OperationManager.invokeOperation(OperationManager.java:156) at org.rhq.core.pc.operation.OperationManager.invokeOperation(OperationManager.java:110) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.rhq.enterprise.communications.command.impl.remotepojo.server.RemotePojoInvocationCommandService.execute(RemotePojoInvocationCommandService.java:184) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:111) at com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:45) at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:235) at com.sun.jmx.mbeanserver.PerInterface.invoke(PerInterface.java:138) at com.sun.jmx.mbeanserver.MBeanSupport.invoke(MBeanSupport.java:250) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:791) at javax.management.MBeanServerInvocationHandler.invoke(MBeanServerInvocationHandler.java:305) at $Proxy0.execute(Unknown Source) at org.rhq.enterprise.communications.command.server.CommandProcessor.handleIncomingInvocationRequest(CommandProcessor.java:290) at org.rhq.enterprise.communications.command.server.CommandProcessor.invoke(CommandProcessor.java:184) at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:967) at org.jboss.remoting.transport.socket.ServerThread.completeInvocation(ServerThread.java:791) at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:744) at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:586) at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:234) Caused by: java.lang.IllegalStateException: [Warning] Timer already cancelled. ... 27 more Expected results: Some explaining message: i.e. Failed to submit invocation request - Plugin container is being shutdown