[jira] [Created] (KARAF-1574) When two karaf containers are started locally, an exception is displayed at startup. A nicer message would be better.

[Guillaume Nodet (JIRA)]

Guillaume Nodet created KARAF-1574:
--------------------------------------

             Summary: When two karaf containers are started locally, an 
exception is displayed at startup.  A nicer message would be better.
                 Key: KARAF-1574
                 URL: https://issues.apache.org/jira/browse/KARAF-1574
             Project: Karaf
          Issue Type: Bug
    Affects Versions: 2.2.7
            Reporter: Guillaume Nodet
            Priority: Minor


{code}

gnodet:~/work/apps/apache-karaf-2.2.8$ bin/karaf 
Exception in thread "JMX Connector Thread 
[service:jmx:rmi://0.0.0.0:44444/jndi/rmi://0.0.0.0:1099/karaf-root]" 
java.lang.RuntimeException: Could not start JMX connector server
        at 
org.apache.karaf.management.ConnectorServerFactory$1.run(ConnectorServerFactory.java:233)
Caused by: java.rmi.server.ExportException: Port already in use: 44444; nested 
exception is: 
        java.net.BindException: Address already in use
        at sun.rmi.transport.tcp.TCPTransport.listen(TCPTransport.java:310)
        at 
sun.rmi.transport.tcp.TCPTransport.exportObject(TCPTransport.java:218)
        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:188)
        at 
java.rmi.server.UnicastRemoteObject.exportObject(UnicastRemoteObject.java:293)
        at 
java.rmi.server.UnicastRemoteObject.exportObject(UnicastRemoteObject.java:256)
        at 
javax.management.remote.rmi.RMIJRMPServerImpl.export(RMIJRMPServerImpl.java:82)
        at 
javax.management.remote.rmi.RMIJRMPServerImpl.export(RMIJRMPServerImpl.java:75)
        at 
javax.management.remote.rmi.RMIConnectorServer.start(RMIConnectorServer.java:388)
        at 
org.apache.karaf.management.ConnectorServerFactory$1.run(ConnectorServerFactory.java:231)
Caused by: java.net.BindException: Address already in use
        at java.net.PlainSocketImpl.socketBind(Native Method)
        at java.net.PlainSocketImpl.bind(PlainSocketImpl.java:383)
        at java.net.ServerSocket.bind(ServerSocket.java:328)
        at java.net.ServerSocket.<init>(ServerSocket.java:194)
        at java.net.ServerSocket.<init>(ServerSocket.java:106)
        at 
sun.rmi.transport.proxy.RMIDirectSocketFactory.createServerSocket(RMIDirectSocketFactory.java:27)
        at 
sun.rmi.transport.proxy.RMIMasterSocketFactory.createServerSocket(RMIMasterSocketFactory.java:333)
        at 
sun.rmi.transport.tcp.TCPEndpoint.newServerSocket(TCPEndpoint.java:649)
        at sun.rmi.transport.tcp.TCPTransport.listen(TCPTransport.java:299)
        ... 10 more
        __ __                  ____      
       / //_/____ __________ _/ __/      
      / ,<  / __ `/ ___/ __ `/ /_        
     / /| |/ /_/ / /  / /_/ / __/        
    /_/ |_|\__,_/_/   \__,_/_/         

  Apache Karaf (2.2.8)

Hit '<tab>' for a list of available commands
and '[cmd] --help' for help on a specific command.
Hit '<ctrl-d>' or 'osgi:shutdown' to shutdown Karaf.

karaf@root> 
{code}

Catching this exception and displaying a nicer and more informative message 
would be a good idea.

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