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https://issues.apache.org/jira/browse/ZOOKEEPER-1978?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14069172#comment-14069172
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Hadoop QA commented on ZOOKEEPER-1978:
--------------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12656894/ZOOKEEPER-1978.patch
against trunk revision 1612362.
+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 appears to introduce 9 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 failed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/2211//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/2211//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output:
https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/2211//console
This message is automatically generated.
> Fix Multithreaded correctness Warnings
> --------------------------------------
>
> Key: ZOOKEEPER-1978
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1978
> Project: ZooKeeper
> Issue Type: Sub-task
> Reporter: Hongchao Deng
> Assignee: Hongchao Deng
> Priority: Minor
> Fix For: 3.5.0
>
> Attachments: ZOOKEEPER-1978.patch
>
>
> findbugs is complaining
> {code}
> if (sessionsById.get(id) == null) {
> SessionImpl s = new SessionImpl(id, sessionTimeout);
> sessionsById.put(id, s);
> }
> {code}
> is not atomic for the gap between get() and put().
> I suggest using putIfAbsent() instead.
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