Loops realized via a decision node will eventually cause a StackOverflow Exception ---------------------------------------------------------------------------------- Key: JBPM-1145 URL: http://jira.jboss.com/jira/browse/JBPM-1145 Project: JBoss jBPM Issue Type: Bug Components: Core Engine Affects Versions: jBPM 3.1.4, jBPM 3.1 Reporter: R??diger Schmitz Assigned To: 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) -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira