Can you please try the snapshots marked as 5.5.1 (which is actually for the 5.6 release) and let us know if you still have problems:
http://snapshots.jboss.org/maven2/org/drools/drools-core/

We will also need some sort of test case to reproduce the issue.

Mark
On 5 Mar 2013, at 04:12, Smita S. Deshpande <Smita.Deshpande@mastek.com> wrote:

Hi,
 
We are currently using drools 5.0.1 for processing business rules. But we are currently facing an issue where if we invoke the rule using 10 concurrent requests , thread gets locked . The error is as below .
 
Deadlock/Blocked
Monitor
Owns Monitor Lock on org/drools/rule/JavaDialectRuntimeData$PackageClassLoader@0E99F9B8/0E99F9C4 
Waiting for Monitor Lock on org/drools/rule/CompositeClassLoader@0DB50DC0/0DB50DCC
Java Stack
at java/lang/ClassLoader.loadClass(ClassLoader.java:606(Compiled Code)) 
at java/lang/Class.forNameImpl(Native Method) 
at java/lang/Class.forName(Class.java:163(Compiled Code)) 
at org/drools/rule/JavaDialectRuntimeData$PackageClassLoader.loadClass(JavaDialectRuntimeData.java:458(Compiled Code)) 
at java/lang/ClassLoader.loadClass(ClassLoader.java:606(Compiled Code)) 
at /Rule_AutoUW_Rule_BR12Constants_153_0ConsequenceInvoker.evaluate(Rule_AutoUW_Rule_BR12Constants_153_0ConsequenceInvoker.java:16)
at org/drools/common/DefaultAgenda.fireActivation(DefaultAgenda.java:934(Compiled Code)) 
at org/drools/common/DefaultAgenda.fireNextItem(DefaultAgenda.java:885(Compiled Code)) 
at org/drools/common/DefaultAgenda.fireAllRules(DefaultAgenda.java:1086(Compiled Code)) 
at org/drools/common/AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:661(Compiled Code)) 
at org/drools/common/AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:637(Compiled Code)) 
at org/drools/reteoo/ReteooStatelessSession.execute(ReteooStatelessSession.java:203(Compiled Code))
 
 
Can you please advice .This has been occurring on Production systems and causing failures
 
Thanks & Regards,
Smita Deshpande
Technical Specialist - DU UK Insurance
Mastek Ltd | Cerebrum,2nd Floor, KalyaniNagar, Pune, Maharashtra, INDIA
(M)(0)9823041314 | (T) 91 20 66072000 Extn - 2256 | VOIP: 729 | www.mastek.com
 


MASTEK LTD.
In the US, we're called MAJESCOMASTEK

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