[jboss-dev-forums] [JBoss AS 7 Development] - Remote EJB stale connection? InvocationTargetException: Remoting connection channel has been closed

[Branden Smith]

Branden Smith [https://community.jboss.org/people/sumitsu] created the discussion

"Remote EJB stale connection? InvocationTargetException: Remoting connection channel has been closed"

To view the discussion, visit: https://community.jboss.org/message/740042#740042

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I'm encountering the following client-side exception when I try to invoke an AS7-deployed EJB 3 SLSB after a period of idle time:

java.lang.reflect.*InvocationTargetException*
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at +{client application}+
        at sun.reflect.GeneratedMethodAccessor13.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:305)
        at sun.rmi.transport.Transport$1.run(Transport.java:159)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.rmi.transport.Transport.serviceCall(Transport.java:155)
        at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:535)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:790)
        at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:649)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
        at java.lang.Thread.run(Thread.java:619)
*Caused by: java.lang.reflect.UndeclaredThrowableException*
        at $Proxy4.doTask(Unknown Source)
        at +{client application}+
        ... 23 more
Caused by: *java.io.IOException: Channel Channel ID abc6099f (outbound) of Remoting connection 00cb31d8 to null has been closed*
        at org.jboss.ejb.client.remoting.ChannelAssociation$1.handleClose(ChannelAssociation.java:110)
        at org.jboss.ejb.client.remoting.ChannelAssociation$1.handleClose(ChannelAssociation.java:102)
        at org.jboss.remoting3.spi.SpiUtils.safeHandleClose(SpiUtils.java:54)
        at org.jboss.remoting3.spi.AbstractHandleableCloseable$CloseHandlerTask.run(AbstractHandleableCloseable.java:501)
        at org.jboss.remoting3.spi.AbstractHandleableCloseable.runCloseTask(AbstractHandleableCloseable.java:406)
        at org.jboss.remoting3.spi.AbstractHandleableCloseable.closeComplete(AbstractHandleableCloseable.java:277)
        at org.jboss.remoting3.remote.RemoteConnectionChannel.closeAction(RemoteConnectionChannel.java:517)
        at org.jboss.remoting3.spi.AbstractHandleableCloseable.closeAsync(AbstractHandleableCloseable.java:359)
        at org.jboss.remoting3.remote.RemoteConnectionHandler.closeAllChannels(RemoteConnectionHandler.java:382)
        at org.jboss.remoting3.remote.RemoteConnectionHandler.handleConnectionClose(RemoteConnectionHandler.java:103)
        at org.jboss.remoting3.remote.RemoteReadListener$1$1.run(RemoteReadListener.java:55)
        ... 3 more

The client does not appear to automatically retry.  Here is my current *jboss-ejb-client.properties* file:

remote.connectionprovider.create.options.org.xnio.Options.SSL_ENABLED=false
remote.connections=default

remote.connection.default.host=+{HOST}+
remote.connection.default.port=19000
remote.connection.default.connect.options.org.xnio.Options.SASL_POLICY_NOANONYMOUS=false

remote.connection.default.username=+{username}+
remote.connection.default.password=+{password}+

I don't recall having seen a similar "stale connection" effect when remotely invoking EJBs under previous version of JBoss.

* Have I incorrectly configured something, either for remoting on the server side, or on the client side?
* Is there anything I should do to make the AS7 EJB client handle this Exception internally, or do I just need to write client code to catch the InvocationTargetException and retry from there?

Thanks.
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