Bug 780371 (SOA-2782)

Summary:	Drools Session insert ConcurrentModificationException in Multithreading Enviroment
Product:	[JBoss] JBoss Enterprise SOA Platform 5	Reporter:	Matt Davis <mattd>
Component:	JBoss Rules	Assignee:	Default User <jbpapp-maint>
Status:	CLOSED NEXTRELEASE	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	5.0.2
Target Milestone:	---
Target Release:	5.1.0 GA
Hardware:	Unspecified
OS:	Unspecified
URL:	http://jira.jboss.org/jira/browse/SOA-2782
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-02-17 11:52:38 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description Matt Davis 2011-01-14 18:13:43 UTC

project_key: SOA

In multithreading enviroment (with 50 active thread) sometimes occurs a ConcurrentModificationException , the complete stacktrace

Caused by: java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry(HashMap.java:1091)
at java.util.HashMap$ValueIterator.next(HashMap.java:1122)
at org.drools.reteoo.ClassObjectTypeConf.getMatchingObjectTypes(ClassObjectTypeConf.java:171)
at org.drools.reteoo.ClassObjectTypeConf.getObjectTypeNodes(ClassObjectTypeConf.java:163)
at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:143)
at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1046)
at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1001)
at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:788)
at it.vtfinance.vtpie.mlp.bpm.conditions.DroolsCondition.passesCondition(DroolsCondition.java:52)
at com.opensymphony.workflow.AbstractWorkflow.passesCondition(AbstractWorkflow.java:904)
... 24 more


DroolsCondition is SINGLETONE, all thread use a same RuleBase but creates a new Session for each Thread.

Comment 1 Matt Davis 2011-01-14 18:14:17 UTC

Link: Added: This issue Cloned to JBRULES-2418

Comment 2 John Graham 2011-01-17 15:05:39 UTC

Based on resolution of the project JIRA, this should be included in SOA 5.1. Please re-open with explanation if you believe this is not the case.

Comment 3 Dana Mison 2011-02-17 11:52:20 UTC

Release Notes Docs Status: Added: Documented as Resolved Issue
Writer: Added: Darrin
Release Notes Text: Added: FIXED: JBoss Rules Session insert was throwing an unexpected exception (ConcurrentModificationException) in multithreading enviroments.