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From Fady Haikal <fadyhai...@gmail.com>
Subject Fwd: Failed to stop component [StandardEngine[Catalina].StandardHost[localhost]
Date Thu, 22 Dec 2016 15:46:25 GMT
We can see the below error on the log file please advise:

OS: windows
Tomcat Version: 8.0.30
Cluster Tomcat

30-Nov-2016 08:32:21.197 SEVERE [Catalina-startStop-2]
org.apache.catalina.core.ContainerBase.stopInternal A child container
failed during stop

java.util.concurrent.ExecutionException:
org.apache.catalina.LifecycleException: Failed to stop component
[StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]

                at java.util.concurrent.FutureTask.report(Unknown Source)

                at java.util.concurrent.FutureTask.get(Unknown Source)

                at
org.apache.catalina.core.ContainerBase.stopInternal(ContainerBase.java:972)

                at
org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)

                at
org.apache.catalina.core.ContainerBase$StopChild.call(
ContainerBase.java:1424)

                at
org.apache.catalina.core.ContainerBase$StopChild.call(
ContainerBase.java:1413)

                at java.util.concurrent.FutureTask.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)

Caused by: org.apache.catalina.LifecycleException: Failed to stop
component [StandardEngine[Catalina].StandardHost[localhost].
StandardContext[]]

                at
org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:236)

                ... 6 more

Caused by: org.apache.catalina.LifecycleException: Failed to stop
component [WebappLoader[]]

                at
org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:236)

                at
org.apache.catalina.core.StandardContext.stopInternal(
StandardContext.java:5517)

                at
org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)

                ... 6 more

Caused by: java.util.ConcurrentModificationException

                at java.util.HashMap$HashIterator.nextEntry(Unknown Source)

                at java.util.HashMap$ValueIterator.next(Unknown Source)

                at
org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesRmiTargets(
WebappClassLoaderBase.java:2275)

                at
org.apache.catalina.loader.WebappClassLoaderBase.clearReferences(
WebappClassLoaderBase.java:1578)

                at
org.apache.catalina.loader.WebappClassLoaderBase.stop(
WebappClassLoaderBase.java:1521)

                at
org.apache.catalina.loader.WebappLoader.stopInternal(WebappLoader.java:447)

                at
org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)

                ... 8 more




30-Nov-2016 08:32:21.354 SEVERE [Catalina-startStop-2]
org.apache.catalina.core.ContainerBase.stopInternal A child container
failed during stop
 java.util.concurrent.ExecutionException:
org.apache.catalina.LifecycleException: Failed to stop component
[StandardEngine[Catalina].StandardHost[localhost].StandardContext[/docs]]
at java.util.concurrent.FutureTask.report(Unknown Source)
at java.util.concurrent.FutureTask.get(Unknown Source)
at org.apache.catalina.core.ContainerBase.stopInternal(
ContainerBase.java:972)
at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
at org.apache.catalina.core.ContainerBase$StopChild.call(
ContainerBase.java:1424)
at org.apache.catalina.core.ContainerBase$StopChild.call(
ContainerBase.java:1413)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.catalina.LifecycleException: Failed to stop
component [StandardEngine[Catalina].StandardHost[localhost].
StandardContext[/docs]]
at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:236)
... 6 more
Caused by: org.apache.catalina.LifecycleException: Failed to stop
component [WebappLoader[/docs]]
at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:236)
at org.apache.catalina.core.StandardContext.stopInternal(
StandardContext.java:5517)
at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
... 6 more
Caused by: java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry(Unknown Source)
at java.util.HashMap$ValueIterator.next(Unknown Source)
at org.apache.catalina.loader.WebappClassLoaderBase.
clearReferencesRmiTargets(WebappClassLoaderBase.java:2275)
at org.apache.catalina.loader.WebappClassLoaderBase.clearReferences(
WebappClassLoaderBase.java:1578)
at org.apache.catalina.loader.WebappClassLoaderBase.stop(
WebappClassLoaderBase.java:1521)
at org.apache.catalina.loader.WebappLoader.stopInternal(
WebappLoader.java:447)
at org.apache.catalina.util.LifecycleBase.stop(LifecycleBase.java:232)
... 8 more


Regards,
Fady

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