Hi everybody! I'm struggling with the forEach construct. We already had a Drools Flow running using Drools 5.0. Now we would like to port it to Drools Flow 5.1.1. It seems that there is a problem with the ForEach Construct in combination with the XOR Gateway (the same seems to be true for the OR Gateway): Even if i set both constrains of the gateway to "eval( true )" i got an runtime Error like (full Stacktrace at the end of my post): Caused by: java.lang.IllegalArgumentException: XOR split could not find at least one valid outgoing connection for split Art des Arbeitsanstosses pruefen I can even reproduce this behaviour when building a small workflow from scratch. Had anyone else such an error? Does anyone know a workaround for this? You can reproduce this with the attached Flows. Any help is really appreciated! Regards, Dirk Hermanns P.S.: If i try to build such an Flow using the new bpmn Notation, i get an error when building the package in Guvnor: Workitem Node xxx has no incoming connection. So this doesn't seem to help :(. Has anyone got the forEach (or Multiple Instances) feature with Drools 5.1.1 working? org.drools.RuntimeDroolsException: Unexpected exception executing action org.drools.process.instance.event.DefaultSignalManager$SignalAction@15c90f4       at org.drools.common.AbstractWorkingMemory.executeQueuedActions (AbstractWorkingMemory.java:1473)       at org.drools.common.DefaultAgenda.fireAllRules (DefaultAgenda.java:1074)       at org.drools.common.AbstractWorkingMemory.fireAllRules (AbstractWorkingMemory.java:785)       at org.drools.common.AbstractWorkingMemory.fireAllRules (AbstractWorkingMemory.java:751)       at org.drools.process.instance.impl.DefaultWorkItemManager.completeWorkItem (DefaultWorkItemManager.java:120)       at de.lvm.vorverteilung.internal.util.VorvertelungsauftragAnalysierenWorkItemHandler.executeWorkItem (VorvertelungsauftragAnalysierenWorkItemHandler.java:51)       at org.drools.process.instance.impl.DefaultWorkItemManager.internalExecuteWorkItem (DefaultWorkItemManager.java:72)       at org.drools.workflow.instance.node.WorkItemNodeInstance.internalTrigger (WorkItemNodeInstance.java:101)       at org.drools.workflow.instance.impl.NodeInstanceImpl.trigger (NodeInstanceImpl.java:117)       at org.drools.workflow.instance.impl.NodeInstanceImpl.triggerConnection (NodeInstanceImpl.java:178)       at org.drools.workflow.instance.impl.NodeInstanceImpl.triggerCompleted (NodeInstanceImpl.java:144)       at org.drools.workflow.instance.node.StartNodeInstance.triggerCompleted (StartNodeInstance.java:49)       at org.drools.workflow.instance.node.StartNodeInstance.internalTrigger (StartNodeInstance.java:41)       at org.drools.workflow.instance.impl.NodeInstanceImpl.trigger (NodeInstanceImpl.java:117)       at org.drools.ruleflow.instance.RuleFlowProcessInstance.internalStart (RuleFlowProcessInstance.java:32)       at org.drools.process.instance.impl.ProcessInstanceImpl.start (ProcessInstanceImpl.java:192)       at org.drools.workflow.instance.impl.WorkflowProcessInstanceImpl.start (WorkflowProcessInstanceImpl.java:309)       at org.drools.common.AbstractWorkingMemory.startProcess (AbstractWorkingMemory.java:1644)       at org.drools.impl.StatefulKnowledgeSessionImpl.startProcess (StatefulKnowledgeSessionImpl.java:306)       at de.lvm.vorverteilung.internal.rules.TerminHRuleFlowTest.runTermin1 (TerminHRuleFlowTest.java:252)       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.junit.runners.model.FrameworkMethod$1.runReflectiveCall (FrameworkMethod.java:44)       at org.junit.internal.runners.model.ReflectiveCallable.run (ReflectiveCallable.java:15)       at org.junit.runners.model.FrameworkMethod.invokeExplosively (FrameworkMethod.java:41)       at org.junit.internal.runners.statements.InvokeMethod.evaluate (InvokeMethod.java:20)       at org.junit.internal.runners.statements.RunBefores.evaluate (RunBefores.java:28)       at org.junit.internal.runners.statements.RunAfters.evaluate (RunAfters.java:31)       at org.junit.runners.BlockJUnit4ClassRunner.runChild (BlockJUnit4ClassRunner.java:70)       at org.junit.runners.BlockJUnit4ClassRunner.runChild (BlockJUnit4ClassRunner.java:44)       at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180)       at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41)       at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173)       at org.junit.internal.runners.statements.RunBefores.evaluate (RunBefores.java:28)       at org.junit.internal.runners.statements.RunAfters.evaluate (RunAfters.java:31)       at org.junit.runners.ParentRunner.run(ParentRunner.java:220)       at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run (JUnit4TestReference.java:46)       at org.eclipse.jdt.internal.junit.runner.TestExecution.run (TestExecution.java:38)       at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests (RemoteTestRunner.java:467)       at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests (RemoteTestRunner.java:683)       at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run (RemoteTestRunner.java:390)       at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main (RemoteTestRunner.java:197) Caused by: java.lang.IllegalArgumentException: XOR split could not find at least one valid outgoing connection for split Art des Arbeitsanstosses pruefen       at org.drools.workflow.instance.node.SplitInstance.internalTrigger (SplitInstance.java:92)       at org.drools.workflow.instance.impl.NodeInstanceImpl.trigger (NodeInstanceImpl.java:117)       at org.drools.workflow.instance.impl.NodeInstanceImpl.triggerConnection (NodeInstanceImpl.java:178)       at org.drools.workflow.instance.impl.NodeInstanceImpl.triggerCompleted (NodeInstanceImpl.java:144)       at org.drools.workflow.instance.impl.ExtendedNodeInstanceImpl.triggerCompleted (ExtendedNodeInstanceImpl.java:53)       at org.drools.workflow.instance.node.StateBasedNodeInstance.triggerCompleted (StateBasedNodeInstance.java:117)       at org.drools.workflow.instance.node.StateBasedNodeInstance.triggerCompleted (StateBasedNodeInstance.java:98)       at org.drools.workflow.instance.node.WorkItemNodeInstance.internalTrigger (WorkItemNodeInstance.java:105)       at org.drools.workflow.instance.impl.NodeInstanceImpl.trigger (NodeInstanceImpl.java:117)       at org.drools.workflow.instance.impl.NodeInstanceImpl.triggerConnection (NodeInstanceImpl.java:178)       at org.drools.workflow.instance.impl.NodeInstanceImpl.triggerCompleted (NodeInstanceImpl.java:144)       at org.drools.workflow.instance.impl.ExtendedNodeInstanceImpl.triggerCompleted (ExtendedNodeInstanceImpl.java:53)       at org.drools.workflow.instance.node.StateBasedNodeInstance.triggerCompleted (StateBasedNodeInstance.java:117)       at org.drools.workflow.instance.node.StateBasedNodeInstance.triggerCompleted (StateBasedNodeInstance.java:98)       at org.drools.workflow.instance.node.RuleSetNodeInstance.signalEvent (RuleSetNodeInstance.java:71)       at org.drools.workflow.instance.impl.WorkflowProcessInstanceImpl.signalEvent (WorkflowProcessInstanceImpl.java:343)       at org.drools.process.instance.event.DefaultSignalManager.internalSignalEvent (DefaultSignalManager.java:79)       at org.drools.process.instance.event.DefaultSignalManager $SignalAction.execute(DefaultSignalManager.java:167)       at org.drools.common.AbstractWorkingMemory.executeQueuedActions (AbstractWorkingMemory.java:1471)       ... 43 more (See attached file: ZZTestFlow2.rf)(See attached file: ZZTestFlow.bpmn)