[rules-users] KnowledgeAgentImpl registeredResourceMap memory issue

Cwen Cwen at regenstrief.org
Mon Apr 14 14:08:31 EDT 2014 

Davide, 
I tried change our methods signature and run the application. Getting
following stack trace when calling KnowledgeAgent.applyChangeSet(Resource
resource):

java.lang.RuntimeException: KnowledgeAgent exception while trying to
deserialize KnowledgeDefinitionsPackage  
	at
org.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(KnowledgeAgentImpl.java:796)
	at
org.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase(KnowledgeAgentImpl.java:1094)
	at
org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(KnowledgeAgentImpl.java:844)
	at
org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(KnowledgeAgentImpl.java:684)
	at
org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:207)
	at
org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(KnowledgeAgentImpl.java:186)

	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
	at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
	at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:148)
	at
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:87)
	at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1004)
	at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:957)
	at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:490)
	at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
	at
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:271)
	at
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:121)
	at
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveManagedList(BeanDefinitionValueResolver.java:353)
	at
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:154)
	at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1391)
	at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1132)
	at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522)
	at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
	at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
	at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
	at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)
	at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
	at
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:626)
	at
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
	at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
	at
org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)
	at
org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
	at
org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)
	at
org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4350)
	at
org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4816)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)
	at
org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1028)
	at
org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:773)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)
	at
org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1028)
	at
org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:278)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)
	at
org.apache.catalina.core.StandardService.startInternal(StandardService.java:429)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)
	at
org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:662)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:140)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:592)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:290)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:418)
Caused by: java.io.InvalidClassException:
org.drools.rule.constraint.MvelConstraint; local class incompatible: stream
classdesc serialVersionUID = 8537626313322861096, local class
serialVersionUID = 148857042101396396
	at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:562)
	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1582)
	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1495)
	at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1731)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
	at java.util.ArrayList.readObject(ArrayList.java:593)
	at sun.reflect.GeneratedMethodAccessor25.invoke(Unknown Source)
	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
	at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
	at org.drools.rule.Pattern.readExternal(Pattern.java:125)
	at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1791)
	at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1750)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
	at java.util.ArrayList.readObject(ArrayList.java:593)
	at sun.reflect.GeneratedMethodAccessor25.invoke(Unknown Source)
	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
	at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
	at org.drools.rule.GroupElement.readExternal(GroupElement.java:63)
	at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1791)
	at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1750)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
	at org.drools.rule.Rule.readExternal(Rule.java:186)
	at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1791)
	at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1750)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
	at java.util.IdentityHashMap.readObject(IdentityHashMap.java:1188)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
	at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
	at
org.drools.rule.MVELDialectRuntimeData.readExternal(MVELDialectRuntimeData.java:90)
	at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1791)
	at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1750)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
	at java.util.HashMap.readObject(HashMap.java:1030)
	at sun.reflect.GeneratedMethodAccessor26.invoke(Unknown Source)
	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
	at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
	at
org.drools.rule.DialectRuntimeRegistry.readExternal(DialectRuntimeRegistry.java:58)
	at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1791)
	at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1750)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
	at org.drools.rule.Package.readExternal(Package.java:212)
	at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1791)
	at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1750)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
	at
org.drools.core.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:205)
	at
org.drools.core.util.DroolsStreamUtils.streamIn(DroolsStreamUtils.java:189)
	at
org.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(KnowledgeAgentImpl.java:769)
	... 58 more




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