[rules-users] kContainer.newKieSession() fails in Apache Karaf

[jhusby]

I wasn't subscribed to the mailing list so I don't think my message below
went through.  Apologies if it did.


jhusby wrote
> I'm trying to run Drools in an OSGi container (Apache Karaf 2.3.3 to be
> precise).  When I try to call newKieSession() on a KieContainer, I get an
> exception as follows:
> 
> java.lang.IllegalArgumentException: conflict Resolver
> 'org.drools.core.conflict.DepthConflictResolver' not found
> 	at
> org.drools.core.RuleBaseConfiguration.determineConflictResolver(RuleBaseConfiguration.java:868)[276:org.drools.core:6.0.1.20131220-0333]
> 	at
> org.drools.core.RuleBaseConfiguration.init(RuleBaseConfiguration.java:459)[276:org.drools.core:6.0.1.20131220-0333]
> 	at
> org.drools.core.RuleBaseConfiguration.init(RuleBaseConfiguration.java:415)[276:org.drools.core:6.0.1.20131220-0333]
> 	at org.drools.core.RuleBaseConfiguration.
> <init>
> (RuleBaseConfiguration.java:402)[276:org.drools.core:6.0.1.20131220-0333]
> 	at
> org.drools.core.impl.KnowledgeBaseFactoryServiceImpl.newKnowledgeBaseConfiguration(KnowledgeBaseFactoryServiceImpl.java:37)[276:org.drools.core:6.0.1.20131220-0333]
> 	at
> org.kie.internal.KnowledgeBaseFactory.newKnowledgeBaseConfiguration(KnowledgeBaseFactory.java:125)[275:org.kie.internalapi:6.0.1.20131220-0322]
> 	at
> org.drools.compiler.kie.builder.impl.KieContainerImpl.getKnowledgeBaseConfiguration(KieContainerImpl.java:323)[277:org.drools.compiler:6.0.1.20131220-0333]
> 	at
> org.drools.compiler.kie.builder.impl.KieContainerImpl.createKieBase(KieContainerImpl.java:316)[277:org.drools.compiler:6.0.1.20131220-0333]
> 	at
> org.drools.compiler.kie.builder.impl.KieContainerImpl.getKieBase(KieContainerImpl.java:257)[277:org.drools.compiler:6.0.1.20131220-0333]
> 	at
> org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:400)[277:org.drools.compiler:6.0.1.20131220-0333]
> 	at
> org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:349)[277:org.drools.compiler:6.0.1.20131220-0333]
> 	at
> org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:331)[277:org.drools.compiler:6.0.1.20131220-0333]
> 
> As a workaround, I was able to get it working by doing this:
> 
> 	KieBaseConfiguration kbaseConf = KnowledgeBaseFactory
> 						.newKnowledgeBaseConfiguration(
> 							null,
> 							getClass().getClassLoader(),
> 							RuleBaseConfiguration.class.getClassLoader()
> 						);
> 	KieBase kbase = kContainer.newKieBase(kbaseConf);
> 	kSession = kbase.newKieSession();
> 
> but this is obviously less than ideal.  Any ideas on how to make this work
> better in OSGi?
> 
> Thank you!
> 
> Joseph





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