Drools Fusion broker example throws stacktraces in drools 5.2.0

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Unexpected exception caught: Unexpected exception executing action org.jbpm.process.instance.event.DefaultSignalManager$SignalAction@1eeba19                                                                                                 
org.drools.RuntimeDroolsException: Unexpected exception executing action org.jbpm.process.instance.event.DefaultSignalManager$SignalAction@1eeba19                                                                                           
        at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:996)                                                                                                                                      
        at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1059)                                                                                                                                                             
        at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:733)                                                                                                                                              
        at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:699)                                                                                                                                              
        at org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:218)                                                                                                                                  
        at org.drools.examples.broker.Broker.receive(Broker.java:68)                                                                                                                                                                         
        at org.drools.examples.broker.events.EventFeeder$FeedJob.execute(EventFeeder.java:85)                                                                                                                                                
        at org.drools.time.impl.JDKTimerService$JDKCallableJob.call(JDKTimerService.java:146)                                                                                                                                                
        at org.drools.time.impl.JDKTimerService$JDKCallableJob.call(JDKTimerService.java:124)                                                                                                                                                
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)                                                                                                                                                                
        at java.util.concurrent.FutureTask.run(FutureTask.java:138)                                                                                                                                                                          
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98)                                                                                                              
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:206)                                                                                                                    
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)                                                                                                                                               
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)                                                                                                                                                   
        at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.IllegalArgumentException: XOR split could not find at least one valid outgoing connection for split Take Action
        at org.jbpm.workflow.instance.node.SplitInstance.internalTrigger(SplitInstance.java:98)
        at org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:122)
        at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerConnection(NodeInstanceImpl.java:185)
        at org.jbpm.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:150)
        at org.jbpm.workflow.instance.impl.ExtendedNodeInstanceImpl.triggerCompleted(ExtendedNodeInstanceImpl.java:47)
        at org.jbpm.workflow.instance.node.StateBasedNodeInstance.triggerCompleted(StateBasedNodeInstance.java:162)
        at org.jbpm.workflow.instance.node.StateBasedNodeInstance.triggerCompleted(StateBasedNodeInstance.java:143)
        at org.jbpm.workflow.instance.node.RuleSetNodeInstance.signalEvent(RuleSetNodeInstance.java:73)
        at org.jbpm.workflow.instance.impl.WorkflowProcessInstanceImpl.signalEvent(WorkflowProcessInstanceImpl.java:339)
        at org.jbpm.process.instance.event.DefaultSignalManager.internalSignalEvent(DefaultSignalManager.java:80)
        at org.jbpm.process.instance.event.DefaultSignalManager$SignalAction.execute(DefaultSignalManager.java:175)
        at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:994)
        ... 15 more