ExternalResourceReleasable vs. JBoss Hot Undeploy

[Michael LaBrot]

The ServerBootstrap (which I am using) implements
ExternalResourceReleasable, but nothing in the ServerBootstrap
implementation causes the issue. It's just the implementation of
ExternalResourceReleasable that is enough, as my test shows. It seems to me
that JBoss is undeploying the EAR before whatever is trying to release the
ExternalResourceReleasable runs (or completes), but the Netty JAR (which was
in the EAR) is no longer in the classpath.

 

Using eclipse, create a J2C project, add the code below and specify the
MyResourceAdapter class in the ra.xml under
/connector/resourceadapter/resourceadapter-class/. Add the RAR (from the J2C
project) and the Netty JAR to an EAR. Deploy, then un-deploy while JBoss is
still running.

 

Michael LaBrot



  _____  

From: Trustin Lee [via Netty Forums and Mailing Lists]
[mailto:ml-node+4694410-79849016-461186 at n2.nabble.com] 
Sent: Monday, March 08, 2010 4:32 AM
To: Michael LaBrot
Subject: Re: ExternalResourceReleasable vs. JBoss Hot Undeploy

 

Hi Michael, 

This is weird.  It seems like there's some problem with JBoss 
microcontainer integration that Netty provides.  Could you elaborate 
with me so that I can reproduce the problem?  I have not written a JCA 
connector yet. 

Trustin 

Michael LaBrot wrote: 


> I have boiled my issue down to a simple JCA RAR project in an EAR. The
only 
> code is the creation of an object that implements 
> ExternalResourceReleasable. The EAR contains the RAR and
netty-3.1.5.GA.jar. 
> When the EAR is removed from the JBoss 5.1 Server, I receive many stack 
> traces and it all begins with WARN  [StartStopLifecycleAction] Error
during 
> stop for org.jboss.netty.internal.ResourceFactory 
> java.lang.NoClassDefFoundError: org/jboss/netty/util/internal/ExecutorUtil

> at 
>
org.jboss.netty.container.microcontainer.NettyResourceFactory.stop(NettyReso
urceFactory.java:54) 
> 
> The code: 
> 
> public class Foo implements 
>         org.jboss.netty.util.ExternalResourceReleasable 
> { 
>     @Override 
>     public void releaseExternalResources() 
>     { 
>     } 
> } 
> 
> public class MyResourceAdapter implements 
>         javax.resource.spi.ResourceAdapter.ResourceAdapter 
> { 
>     // All other overrides are empty and ommitted from this listing for 
> clarity. 
> 
>     @Override 
>     public void start(javax.resource.spi.BootstrapContext serverCtx) 
>             throws javax.resource.spi.ResourceAdapterInternalException 
>     { 
>         Foo foo = new Foo(); 
>     } 
> } 
> 
> Help? 

-- 
what we call human nature in actuality is human habit 
http://gleamynode.net/




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