Description
Running the complex sample pipeline using the Flink engine gives...
2021/04/19 12:48:21 - complex - Executing this pipeline using the Beam Pipeline Engine with run configuration 'Flink' Exception in thread "Thread-579" 2021/04/19 12:48:29 - complex - Beam pipeline execution has finished.java.lang.IllegalStateException: Timer already cancelled. at java.util.Timer.sched(Timer.java:397) at java.util.Timer.schedule(Timer.java:248) at org.apache.hop.ui.hopgui.file.pipeline.HopGuiPipelineGraph.startRedrawTimer(HopGuiPipelineGraph.java:4544) at org.apache.hop.ui.hopgui.file.pipeline.HopGuiPipelineGraph.startThreads(HopGuiPipelineGraph.java:4514) at org.apache.hop.ui.hopgui.file.pipeline.HopGuiPipelineGraph.checkStartThreads(HopGuiPipelineGraph.java:4496) at org.apache.hop.ui.hopgui.file.pipeline.HopGuiPipelineGraph.lambda$preparePipeline$15(HopGuiPipelineGraph.java:4484) at java.lang.Thread.run(Thread.java:748)