[jbpm-issues] [JBoss JIRA] Commented: (JBPM-1145) Loops realized via a decision node will eventually cause a StackOverflow Exception
Ivan B (JIRA)
jira-events at lists.jboss.org
Mon Aug 11 05:15:49 EDT 2008
[ https://jira.jboss.org/jira/browse/JBPM-1145?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12424370#action_12424370 ]
Ivan B commented on JBPM-1145:
------------------------------
I've got the same situation. There is a long decision loop and it breaks after a while with StackOverflowError.
All jBPM context variables (used via Seam) are kept in memory for simplicity and performance reasons.
Is there any workaround for this issue except making the process persistent?
> Loops realized via a decision node will eventually cause a StackOverflow Exception
> ----------------------------------------------------------------------------------
>
> Key: JBPM-1145
> URL: https://jira.jboss.org/jira/browse/JBPM-1145
> Project: JBoss jBPM
> Issue Type: Bug
> Components: Core Engine
> Affects Versions: jBPM 3.1, jBPM 3.1.4
> Reporter: R??diger Schmitz
> Assignee: Tom Baeyens
>
> Executing a simple, iterative loop implemented with a decision node will cause a StackOverflowException (see below for stacktrace). Apparently the iterative calls are executing using recursive calls. This approach fails if a medium sized loop should be executed (a simple reproducing testcase only reached 161 loop iterations before failing). I see this implementation style as highly problematic when processing medium-sized quantities of input data...
> java.lang.StackOverflowError
> at java.lang.ClassLoader.findBootstrapClass(Native Method)
> at java.lang.ClassLoader.findBootstrapClass0(ClassLoader.java:891)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:301)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
> at org.hibernate.loader.Loader.loadCollection(Loader.java:1926)
> at org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:71)
> at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:520)
> at org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:60)
> at org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1627)
> at org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:344)
> at org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:86)
> at org.hibernate.collection.PersistentList.iterator(PersistentList.java:115)
> at org.jbpm.graph.def.GraphElement.findExceptionHandler(GraphElement.java:358)
> at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:326)
> at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:343)
> at org.jbpm.graph.def.Node.execute(Node.java:332)
> at org.jbpm.graph.def.Node.enter(Node.java:316)
> at org.jbpm.graph.def.Node$$FastClassByCGLIB$$d187eeda.invoke(<generated>)
> at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
> at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:161)
> <snip>...a ton of repeating stacktraceelements omitted... <snap>
> at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:161)
> at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$cb94b78_3.enter(<generated>)
> at org.jbpm.graph.def.Transition.take(Transition.java:119)
> at org.jbpm.graph.def.Node.leave(Node.java:382)
> at org.jbpm.graph.exe.ExecutionContext.leaveNode(ExecutionContext.java:136)
> at org.jbpm.graph.node.Decision.execute(Decision.java:145)
> at org.jbpm.graph.def.Node.enter(Node.java:316)
> at org.jbpm.graph.def.Node$$FastClassByCGLIB$$d187eeda.invoke(<generated>)
> at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
> at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:161)
> at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$cb94b78_3.enter(<generated>)
> at org.jbpm.graph.def.Transition.take(Transition.java:119)
> at org.jbpm.graph.def.Node.leave(Node.java:382)
> at org.jbpm.graph.def.Node.leave(Node.java:346)
> at org.jbpm.graph.exe.ExecutionContext.leaveNode(ExecutionContext.java:120)
> at com.atos.worldline.kams.workflow.pf.BusinessObjectAccessHandler.doExecute(BusinessObjectAccessHandler.java:114)
> at com.atos.worldline.kams.workflow.pf.AbstractBusinessMethodHandler.execute(AbstractBusinessMethodHandler.java:60)
> at org.jbpm.graph.def.Action.execute(Action.java:123)
> at org.jbpm.graph.def.Action$$FastClassByCGLIB$$7876e90e.invoke(<generated>)
> at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
> at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:161)
> at org.jbpm.graph.def.Action$$EnhancerByCGLIB$$889386ac_3.execute(<generated>)
> at org.jbpm.graph.def.Node.execute(Node.java:328)
> at org.jbpm.graph.def.Node.enter(Node.java:316)
> at org.jbpm.graph.def.Node$$FastClassByCGLIB$$d187eeda.invoke(<generated>)
> at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
> at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:161)
> at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$cb94b78_3.enter(<generated>)
> at org.jbpm.graph.def.Transition.take(Transition.java:119)
> at org.jbpm.graph.def.Node.leave(Node.java:382)
> at org.jbpm.graph.exe.ExecutionContext.leaveNode(ExecutionContext.java:136)
> at org.jbpm.graph.node.Decision.execute(Decision.java:145)
> at org.jbpm.graph.def.Node.enter(Node.java:316)
> at org.jbpm.graph.def.Node$$FastClassByCGLIB$$d187eeda.invoke(<generated>)
> at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
> at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializer.java:161)
> at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$cb94b78_3.enter(<generated>)
> at org.jbpm.graph.def.Transition.take(Transition.java:119)
> at org.jbpm.graph.def.Node.leave(Node.java:382)
> at org.jbpm.graph.def.Node.leave(Node.java:346)
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