-------- The following exception was logged by the framework: The exception was probalby handled properly. java.util.concurrent.ExecutionException: java.lang.NullPointerException at java.util.concurrent.FutureTask.report(Unknown Source) at java.util.concurrent.FutureTask.get(Unknown Source) at javax.swing.SwingWorker.get(Unknown Source) at org.processmining.framework.plugin.ProMFuture.get(ProMFuture.java:119 ) at org.processmining.framework.plugin.impl.AbstractPluginDescriptor$1.do ne(AbstractPluginDescriptor.java:180) at org.processmining.framework.plugin.ProMFuture$1.done(ProMFuture.java: 66) at javax.swing.SwingWorker$5.run(Unknown Source) at javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.run(Unknown Sour ce) at sun.swing.AccumulativeRunnable.run(Unknown Source) at javax.swing.SwingWorker$DoSubmitAccumulativeRunnable.actionPerformed( Unknown Source) at javax.swing.Timer.fireActionPerformed(Unknown Source) at javax.swing.Timer$DoPostEvent.run(Unknown Source) at java.awt.event.InvocationEvent.dispatch(Unknown Source) at java.awt.EventQueue.dispatchEventImpl(Unknown Source) at java.awt.EventQueue.access$200(Unknown Source) at java.awt.EventQueue$3.run(Unknown Source) at java.awt.EventQueue$3.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Sour ce) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source) Caused by: java.lang.NullPointerException at org.processmining.plugins.causalnet.miner.HeuristicsMiner.computeSpli tsJoins(HeuristicsMiner.java:706) at org.processmining.plugins.causalnet.miner.HeuristicsMiner.buildACNet( HeuristicsMiner.java:44) at org.processmining.plugins.causalnet.temp.cube.EventCube.computeCausal Net(EventCube.java:56) at org.processmining.plugins.causalnet.miner.FlexibleHeuristicsMinerPlug in.runFlexibleHeuristicsMiner(FlexibleHeuristicsMinerPlugin.java:131) at org.processmining.plugins.causalnet.miner.FlexibleHeuristicsMinerPlug in.MDHPanel(FlexibleHeuristicsMinerPlugin.java:61) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.processmining.framework.plugin.impl.PluginDescriptorImpl.execute( PluginDescriptorImpl.java:228) at org.processmining.framework.plugin.impl.AbstractPluginDescriptor$1.do InBackground(AbstractPluginDescriptor.java:144) at org.processmining.framework.plugin.ProMFuture$1.doInBackground(ProMFu ture.java:56) at javax.swing.SwingWorker$1.call(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at javax.swing.SwingWorker.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)