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From "Thomas R. Corbin" <thomas.cor...@gmail.com>
Subject when building a broker in java, having issues with ManagementContext and NetworkConnector
Date Mon, 08 Sep 2008 23:18:36 GMT

It seems like I have to create the NetworkConnector first or it messes up the 
ManagementContext.

But if I do create the NetworkConnector first, it *seems* like it creates a 
ManagementContext on it's own and it uses the default port (1099).  But I 
already have another broker on the machine using 1099 for the jmx port.

I'm kind of confused at how I get these two objects constructed in the right 
way, since they both *seem* to depend on each other.

Or maybe it's not the port, maybe it's the broker name?

java.rmi.server.ExportException: internal error: ObjID already in use
        at sun.rmi.transport.ObjectTable.putTarget(ObjectTable.java:169)
        at sun.rmi.transport.Transport.exportObject(Transport.java:74)
        at 
sun.rmi.transport.tcp.TCPTransport.exportObject(TCPTransport.java:229)
        at 
sun.rmi.transport.tcp.TCPEndpoint.exportObject(TCPEndpoint.java:393)
        at sun.rmi.transport.LiveRef.exportObject(LiveRef.java:129)
        at 
sun.rmi.server.UnicastServerRef.exportObject(UnicastServerRef.java:190)
        at sun.rmi.registry.RegistryImpl.setup(RegistryImpl.java:92)
        at sun.rmi.registry.RegistryImpl.<init>(RegistryImpl.java:78)
        at 
java.rmi.registry.LocateRegistry.createRegistry(LocateRegistry.java:186)
        at 
org.apache.activemq.broker.jmx.ManagementContext.createConnector(ManagementContext.java:365)
        at 
org.apache.activemq.broker.jmx.ManagementContext.findMBeanServer(ManagementContext.java:293)
        at 
org.apache.activemq.broker.jmx.ManagementContext.getMBeanServer(ManagementContext.java:148)
        at 
org.apache.activemq.broker.BrokerService.registerNetworkConnectorMBean(BrokerService.java:1442)
        at 
org.apache.activemq.broker.BrokerService.addNetworkConnector(BrokerService.java:328)
        at 
org.apache.activemq.broker.BrokerService.addNetworkConnector(BrokerService.java:280)
        at 
org.apache.activemq.broker.BrokerService.addNetworkConnector(BrokerService.java:256)

-- 
Card #1. Uncle Bob’s Three Laws

• Write no production code except to pass a failing test.
• Write only enough of a test to demonstrate a failure.
• Write only enough production code to pass the test.


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