[jboss-jira] [JBoss JIRA] (WFCORE-2705) The default ModelControllerClient closes resources asynchronously could cause intermittent issues in consumers

[James Perkins (JIRA)]

James Perkins created WFCORE-2705:
-------------------------------------

             Summary: The default ModelControllerClient closes resources asynchronously could cause intermittent issues in consumers
                 Key: WFCORE-2705
                 URL: https://issues.jboss.org/browse/WFCORE-2705
             Project: WildFly Core
          Issue Type: Bug
          Components: Domain Management
            Reporter: James Perkins
            Assignee: James Perkins


The {{RemotingModelControllerClient}} closes some of it's resources asynchronously. This could cause issues consumers of the client that may attempt to change class loaders after the client is closed. The {{ModelControllerClient.close()}} should block until resources are closed. 

Example stack trace from the wildfly-maven-plugin:
{code}
Exception in thread "Remoting "management-client" task-8" java.lang.NoClassDefFoundError: org/xnio/XnioWorker$2
	at org.xnio.XnioWorker.shutDownTaskPool(XnioWorker.java:770)
	at org.xnio.nio.NioXnioWorker.shutdown(NioXnioWorker.java:285)
	at org.jboss.remoting3.EndpointImpl.finishPhase1(EndpointImpl.java:255)
	at org.jboss.remoting3.EndpointImpl.closeTick1(EndpointImpl.java:238)
	at org.jboss.remoting3.EndpointImpl.access$200(EndpointImpl.java:93)
	at org.jboss.remoting3.EndpointImpl$TrackingExecutor.finishWork(EndpointImpl.java:835)
	at org.jboss.remoting3.EndpointImpl$TrackingExecutor.lambda$execute$0(EndpointImpl.java:822)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: org.xnio.XnioWorker$2
	at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247)
	at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239)
	... 10 more
{code}

See WFMP-77 for more details on one place this error seemed intermittent.



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