java.util.ConcurrentModificationException

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    • java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextNode(HashMap.java:1429) at java.util.HashMap$KeyIterator.next(HashMap.java:1453) at org.apache.catalina.loader.WebappClassLoader.loadedByThisOrChild(WebappClassLoader.java:2639) at org.apache.catalina.loader.WebappClassLoader.checkThreadLocalMapForLeaks(WebappClassLoader.java:2554) at org.apache.catalina.loader.WebappClassLoader.checkThreadLocalsForLeaks(WebappClassLoader.java:2509) at org.apache.catalina.loader.WebappClassLoader.clearReferences(WebappClassLoader.java:2015) at org.apache.catalina.loader.WebappClassLoader.stop(WebappClassLoader.java:1910) at org.apache.catalina.loader.WebappLoader.stopInternal(WebappLoader.java:661) at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232) at org.apache.catalina.core.StandardContext.stopInternal(StandardContext.java:5769) at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232) at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1590) at org.apache.catalina.core.ContainerBase$StopChild.call(ContainerBase.java:1579) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)

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