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  • GitHub comment 18#249428980
    via GitHub by mbway
    • java.lang.NullPointerException at$RegisterListener.processRegisterChangedMessage( at simulizer.simulation.messages.SimulationListener.delegateMessage( at simulizer.simulation.messages.MessageManager$ at java.util.concurrent.Executors$ at at java.util.concurrent.ThreadPoolExecutor.runWorker( at java.util.concurrent.ThreadPoolExecutor$ at
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