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https://issues.apache.org/jira/browse/ZOOKEEPER-2618?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15600795#comment-15600795
 ] 

Hadoop QA commented on ZOOKEEPER-2618:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12834868/ZOOKEEPER-2618.patch
  against trunk revision cef5978969bedfe066f903834a9ea4af6d508844.

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified 
tests.
                        Please justify why no new tests are needed for this 
patch.
                        Also please list what manual steps were performed to 
verify this patch.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac 
compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 2.0.3) 
warnings.

    +1 release audit.  The applied patch does not increase the total number of 
release audit warnings.

    +1 core tests.  The patch passed core unit tests.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: 
https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/3497//testReport/
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/3497//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: 
https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/3497//console

This message is automatically generated.

> fix ClassNotFoundException on shutdown of client
> ------------------------------------------------
>
>                 Key: ZOOKEEPER-2618
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2618
>             Project: ZooKeeper
>          Issue Type: Sub-task
>          Components: java client
>    Affects Versions: 3.4.9
>            Reporter: wu wen
>            Priority: Minor
>             Fix For: 3.4.10
>
>         Attachments: ZOOKEEPER-2618.patch
>
>
> see ZOOKEEPER-1394,We also have this issue.
> 2016-10-21 13:17:21.618 ERROR 
> localhost-startStop-1-SendThread(172.21.134.7:2005) ClientCnxn:414 - from 
> localhost-startStop-1-SendThread(172.21.134.7:2005)
> java.lang.NoClassDefFoundError: org/apache/zookeeper/server/ZooTrace
>     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1128)
> Caused by: java.lang.ClassNotFoundException: Illegal access: this web 
> application instance has been stopped already. Could not load 
> [org.apache.zookeeper.server.ZooTrace]. The following stack trace is thrown 
> for debugging purposes as well as to attempt to terminate the thread which 
> caused the illegal access.
>     at 
> org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1315)
>     at 
> org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1178)
>     at 
> org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1139)
>     ... 1 more
> Caused by: java.lang.IllegalStateException: Illegal access: this web 
> application instance has been stopped already. Could not load 
> [org.apache.zookeeper.server.ZooTrace]. The following stack trace is thrown 
> for debugging purposes as well as to attempt to terminate the thread which 
> caused the illegal access.
>     at 
> org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1325)
>     at 
> org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1313)
>     ... 3 more



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