Bug 590953

Summary:	AS plugin: NPE after ConcurrentModificationException in ManagementViewImpl.getDeploymentNamesForType
Product:	[Other] RHQ Project	Reporter:	Ondřej Žižka <ozizka>
Component:	Plugins	Assignee:	Charles Crouch <ccrouch>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Mike Foley <mfoley>
Severity:	medium	Docs Contact:
Priority:	low
Version:	1.3.1	CC:	ccrouch, hbrock, skondkar
Target Milestone:	---	Keywords:	Reopened
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:
Clones:	648776 (view as bug list)		Environment:
Last Closed:	2013-09-03 16:57:25 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	725852, 625146

Description Ondřej Žižka 2010-05-11 04:18:46 UTC

See the stacktrace bellow and https://jira.jboss.org/jira/browse/JBPROFILE-6.

From the nature of the bug, it's not easy to reproduce, but this is how it happened:
1) Start the default profile
2) Log in to the AS console
3) Deploy some Ear with embedded war
4) When AS console page is rendering (and RHQ is scanning the ProfileService), this CMEx occurs.



05:26:29,016 ERROR [StandaloneManagedDeploymentDiscoveryComponent] Unable to get deployment for type ejb2x
java.util.ConcurrentModificationException
        at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
        at java.util.HashMap$ValueIterator.next(HashMap.java:822)
        at org.jboss.profileservice.management.ManagementViewImpl.getDeploymentNamesForType(ManagementViewImpl.java:1104)
        at org.rhq.plugins.jbossas5.AbstractManagedDeploymentDiscoveryComponent.discoverResources(AbstractManagedDeploymentDiscoveryComponent.java:69)
        at sun.reflect.GeneratedMethodAccessor249.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.rhq.core.pc.util.DiscoveryComponentProxyFactory$ComponentInvocationThread.call(DiscoveryComponentProxyFactory.java:266)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
        at java.util.concurrent.FutureTask.run(FutureTask.java:138)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:619)
05:26:29,017 WARN [InventoryManager] Failure during discovery for [EJB2 JAR] Resources - failed after 2809 ms.
java.lang.Exception: Discovery component invocation failed.
        at org.rhq.core.pc.util.DiscoveryComponentProxyFactory$ComponentInvocationThread.call(DiscoveryComponentProxyFactory.java:270)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
        at java.util.concurrent.FutureTask.run(FutureTask.java:138)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.NullPointerException
        at org.rhq.plugins.jbossas5.AbstractManagedDeploymentDiscoveryComponent.discoverResources(AbstractManagedDeploymentDiscoveryComponent.java:76)
        at sun.reflect.GeneratedMethodAccessor249.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.rhq.core.pc.util.DiscoveryComponentProxyFactory$ComponentInvocationThread.call(DiscoveryComponentProxyFactory.java:266)
        ... 5 more

Comment 1 Charles Crouch 2010-05-19 20:47:36 UTC

Ozizka
We need to get to the bottom of the java.util.ConcurrentModificationException
 from AS, please raise a JBAS jira for this and assign to Scott.

Thanks
Charles

Comment 2 Ian Springer 2010-07-30 15:56:44 UTC

The NPE has been fixed in RHQ w/ commit f5bf932 which has been pushed to the release-3.0.0 branch. A JBAS JIRA still needs to be opened for the underlying CME.

Comment 3 Ondřej Žižka 2010-07-30 16:40:16 UTC

Done:  https://jira.jboss.org/browse/JBAS-8271

Comment 4 Ondřej Žižka 2010-09-27 18:36:14 UTC

So far, no work done on JBAS-8271.

Comment 5 Charles Crouch 2010-11-02 04:47:57 UTC

I'm re-opening this as I see no reference that this issue has actually be QE'd in the master branch

Comment 6 Corey Welton 2011-01-04 17:53:41 UTC

Removing dependency on jon241 bug

Comment 7 Sunil Kondkar 2011-07-05 08:38:29 UTC

Verified on build #170 (Version: 4.1.0-SNAPSHOT Build Number: 67e6127)

Discovered JBoss-EAP-5.1 and uploaded ear with embedded war (jboss-seam-booking.ear) The ear with embedded war is deployed successfully. No error is observed in UI and server log.

Marking as verified.

Comment 10 Heiko W. Rupp 2013-09-03 16:57:25 UTC

Bulk closing of old issues that are in VERIFIED state.