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llmhyy / microbat

A feedback-based debugger for interactively recommending suspicious step in buggy program execution.
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Trace Model Concurrent Modification Exception #214

Open dingyuchen opened 3 years ago

dingyuchen commented 3 years ago

Met with ConcurrentModificationException when running microbat, console output is as such:

java.util.ConcurrentModificationException
        at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:911)
    at java.util.ArrayList$Itr.next(ArrayList.java:861)
    at microbat.model.trace.Trace.constructControlDomianceRelation(Trace.java:173)
    at microbat.instrumentation.TraceAgent.constructTrace(TraceAgent.java:92)
    at microbat.instrumentation.TraceAgent.shutdown(TraceAgent.java:69)
    at microbat.instrumentation.Agent.stop(Agent.java:77)
    at microbat.instrumentation.Agent._exitProgram(Agent.java:56)
    at exp.concurrency.case1.DiningPhilosophersDebug.main(DiningPhilosophersDebug.java:18)

ArrayList used may require synchronization