Based upon the stack trace I would say "[it] was working fine for my application." might not be strictly true.
We always promote use of compatible versions of Drools Expert and Guvnor. See below. http://docs.jboss.org/drools/release/5.4.0.Final/droolsjbpm-introduction-docs/html/compatibility.html On 9 October 2012 08:31, abhinay_agarwal <[email protected]>wrote: > hey, > > M using guvnor 5.3.0 Final version and two instances of guvnor. > > In my first guvnor application, i ve two packages containg all my rules > which i am accessing using drools core and knowledge api v5.2.0 Final .I > use > type "DRL" to extract rules from my change set. > > > In my second guvnor application, i just have a package which contains my > JBPM process. Here, i am using drools 5.3.1 Final jars to connect and make > my kbase. i use type = "PKG" in my chnage set, which is contradictory to > JIRA <https://issues.jboss.org/browse/JBRULES-3388> is opened that a PKG > cannot be read, but was working fine for my application. > > Now i dont want to deploy two different wars of guvnor and was expecting to > do it by deploying just 1 guvnor. > > So instead of taking the headache of using different jars, i used a neutral > GUVNOR and drools 5.4.0 final version. I deployed the guvnor, imported the > old repository, built the packages and tried firing the rules using type = > "DRL" in my change set. Everything Worked fine. > > As soon as i changed my type = "PKG" in my change set to access the rules, > i > got an error : > > java.lang.UnsupportedClassVersionError: > Institutional/CalculateDateDifference : Unsupported major.minor version > 51.0 > at java.lang.ClassLoader.defineClass1(Native Method) > at java.lang.ClassLoader.defineClass(ClassLoader.java:620) > at > > org.drools.rule.JavaDialectRuntimeData$PackageClassLoader.fastFindClass(JavaDialectRuntimeData.java:615) > at > > org.drools.util.CompositeClassLoader$CachingLoader.load(CompositeClassLoader.java:254) > at > > org.drools.util.CompositeClassLoader$CachingLoader.load(CompositeClassLoader.java:237) > at > > org.drools.util.CompositeClassLoader.loadClass(CompositeClassLoader.java:88) > at java.lang.ClassLoader.loadClass(ClassLoader.java:251) > at > > org.drools.rule.MVELDialectRuntimeData.getParserConfiguration(MVELDialectRuntimeData.java:270) > at > > org.drools.base.mvel.MVELCompilationUnit.getCompiledExpression(MVELCompilationUnit.java:203) > at > org.drools.base.mvel.MVELConsequence.compile(MVELConsequence.java:75) > at > > org.drools.rule.MVELDialectRuntimeData.onBeforeExecute(MVELDialectRuntimeData.java:173) > at > > org.drools.rule.DialectRuntimeRegistry.onBeforeExecute(DialectRuntimeRegistry.java:144) > at > org.drools.common.AbstractRuleBase.addPackages(AbstractRuleBase.java:599) > at > org.drools.reteoo.ReteooRuleBase.addPackages(ReteooRuleBase.java:472) > at > > org.drools.impl.KnowledgeBaseImpl.addKnowledgePackages(KnowledgeBaseImpl.java:150) > at > > org.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase(KnowledgeAgentImpl.java:1085) > at > > org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(KnowledgeAgentImpl.java:824) > at > > org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(KnowledgeAgentImpl.java:673) > at > > org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:203) > at > > org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:182) > at > > com.infy.fcs.drools.adapter.DroolsGuvnorTest.readKnowledgeBase(DroolsGuvnorTest.java:196) > at > > com.infy.fcs.drools.adapter.DroolsGuvnorTest.main(DroolsGuvnorTest.java:107) > > > When i tried to access the process package(Which is a diff package and > contains only a process), i got the following error > > java.lang.UnsupportedClassVersionError: > > Fatca_Process/Process_Fatca_Process_Fatca_integration_queue_f06d3a378a5f49d5b7589aae2c0b686eReturnValueEvaluator7Invoker > : Unsupported major.minor version 51.0 > at java.lang.ClassLoader.defineClass1(Native Method) > at java.lang.ClassLoader.defineClass(ClassLoader.java:620) > at > > org.drools.rule.JavaDialectRuntimeData$PackageClassLoader.fastFindClass(JavaDialectRuntimeData.java:615) > at > > org.drools.util.CompositeClassLoader$CachingLoader.load(CompositeClassLoader.java:254) > at > > org.drools.util.CompositeClassLoader$CachingLoader.load(CompositeClassLoader.java:237) > at > > org.drools.util.CompositeClassLoader.loadClass(CompositeClassLoader.java:88) > at java.lang.ClassLoader.loadClass(ClassLoader.java:251) > at > > org.drools.rule.JavaDialectRuntimeData.wire(JavaDialectRuntimeData.java:435) > at > > org.drools.rule.JavaDialectRuntimeData.wire(JavaDialectRuntimeData.java:430) > at > > org.drools.rule.JavaDialectRuntimeData.onBeforeExecute(JavaDialectRuntimeData.java:256) > at > > org.drools.rule.DialectRuntimeRegistry.onBeforeExecute(DialectRuntimeRegistry.java:138) > at > org.drools.common.AbstractRuleBase.addPackages(AbstractRuleBase.java:599) > at > org.drools.reteoo.ReteooRuleBase.addPackages(ReteooRuleBase.java:472) > at > > org.drools.impl.KnowledgeBaseImpl.addKnowledgePackages(KnowledgeBaseImpl.java:150) > at > > org.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase(KnowledgeAgentImpl.java:1085) > at > > org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(KnowledgeAgentImpl.java:824) > at > > org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(KnowledgeAgentImpl.java:673) > at > > org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:203) > at > > org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:182) > at > > com.infy.fcs.drools.adapter.DroolsGuvnorTest.readKnowledgeBase(DroolsGuvnorTest.java:196) > at > > com.infy.fcs.drools.adapter.DroolsGuvnorTest.main(DroolsGuvnorTest.java:107) > > > here is the attached changeset that i am using > > > changeset_process.xml > <http://drools.46999.n3.nabble.com/file/n4020175/changeset_process.xml> > ChangeSet_rules.xml > <http://drools.46999.n3.nabble.com/file/n4020175/ChangeSet_rules.xml> > > please lemme know, if wat i am trying to achieve is evne possible or not? > > If yes, then where am i going wrong ? > > > > -- > View this message in context: > http://drools.46999.n3.nabble.com/Complicated-Issue-tp4020175.html > Sent from the Drools: User forum mailing list archive at Nabble.com. > _______________________________________________ > rules-users mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/rules-users >
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