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Posted to users@tomcat.apache.org by Fady Haikal <fa...@gmail.com> on 2016/12/22 15:46:25 UTC
Fwd: Failed to stop component [StandardEngine[Catalina].StandardHost[localhost]
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
Re: Fwd: Failed to stop component [StandardEngine[Catalina].StandardHost[localhost]
Posted by Mark Thomas <ma...@apache.org>.
On 29 December 2016 09:56:45 GMT+00:00, Fady Haikal <fa...@gmail.com> wrote:
>Dear Mark,
>is this bug is fixed in any version?
It hasn't been fixed yet but assuming we follow the usual pattern, it will be fixed for the next set of Tomcat releases in early January.
Mark
>Regards,
>Fady
>
>On Thu, Dec 22, 2016 at 10:22 PM, Mark Thomas <ma...@apache.org> wrote:
>> On 22/12/2016 15:46, Fady Haikal wrote:
>>> We can see the below error on the log file please advise:
>>
>> You are using multiple start/start threads and the RMI reference
>> cleaning isn't thread safe. Arguably that is a bug in Tomcat but if
>you
>> fix the RMI memory leaks in your application you won't hit the Tomcat
>bug.
>>
>> Mark
>>
>>
>>>
>>> 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
>>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: users-help@tomcat.apache.org
>>
>
>---------------------------------------------------------------------
>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>For additional commands, e-mail: users-help@tomcat.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org
Re: Fwd: Failed to stop component [StandardEngine[Catalina].StandardHost[localhost]
Posted by Fady Haikal <fa...@gmail.com>.
Dear Mark,
is this bug is fixed in any version?
Regards,
Fady
On Thu, Dec 22, 2016 at 10:22 PM, Mark Thomas <ma...@apache.org> wrote:
> On 22/12/2016 15:46, Fady Haikal wrote:
>> We can see the below error on the log file please advise:
>
> You are using multiple start/start threads and the RMI reference
> cleaning isn't thread safe. Arguably that is a bug in Tomcat but if you
> fix the RMI memory leaks in your application you won't hit the Tomcat bug.
>
> Mark
>
>
>>
>> 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
>>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org
Re: Fwd: Failed to stop component
[StandardEngine[Catalina].StandardHost[localhost]
Posted by Mark Thomas <ma...@apache.org>.
On 22/12/2016 15:46, Fady Haikal wrote:
> We can see the below error on the log file please advise:
You are using multiple start/start threads and the RMI reference
cleaning isn't thread safe. Arguably that is a bug in Tomcat but if you
fix the RMI memory leaks in your application you won't hit the Tomcat bug.
Mark
>
> 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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