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Posted to dev@zookeeper.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2016/02/05 11:20:39 UTC
[jira] [Commented] (ZOOKEEPER-954) Findbugs/ClientCnxn: Bug type
JLM_JSR166_UTILCONCURRENT_MONITORENTER
[ https://issues.apache.org/jira/browse/ZOOKEEPER-954?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15133950#comment-15133950 ]
Hadoop QA commented on ZOOKEEPER-954:
-------------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12786452/ZOOKEEPER-954.patch
against trunk revision 1728577.
+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 patch. The patch command could not apply the patch.
Console output: https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/3034//console
This message is automatically generated.
> Findbugs/ClientCnxn: Bug type JLM_JSR166_UTILCONCURRENT_MONITORENTER
> --------------------------------------------------------------------
>
> Key: ZOOKEEPER-954
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-954
> Project: ZooKeeper
> Issue Type: Bug
> Components: java client
> Reporter: Thomas Koch
> Priority: Minor
> Attachments: ZOOKEEPER-954.patch
>
>
> JLM Synchronization performed on java.util.concurrent.LinkedBlockingQueue in org.apache.zookeeper.ClientCnxn$EventThread.queuePacket(ClientCnxn$Packet)
>
> Bug type JLM_JSR166_UTILCONCURRENT_MONITORENTER (click for details)
> In class org.apache.zookeeper.ClientCnxn$EventThread
> In method org.apache.zookeeper.ClientCnxn$EventThread.queuePacket(ClientCnxn$Packet)
> Type java.util.concurrent.LinkedBlockingQueue
> Value loaded from field org.apache.zookeeper.ClientCnxn$EventThread.waitingEvents
> At ClientCnxn.java:[line 411]
> JLM Synchronization performed on java.util.concurrent.LinkedBlockingQueue in org.apache.zookeeper.ClientCnxn$EventThread.run()
>
> Bug type JLM_JSR166_UTILCONCURRENT_MONITORENTER (click for details)
> In class org.apache.zookeeper.ClientCnxn$EventThread
> In method org.apache.zookeeper.ClientCnxn$EventThread.run()
> Type java.util.concurrent.LinkedBlockingQueue
> Value loaded from field org.apache.zookeeper.ClientCnxn$EventThread.waitingEvents
> At ClientCnxn.java:[line 436]
> The respective code:
> 409 public void queuePacket(Packet packet) {
> 410 if (wasKilled) {
> 411 synchronized (waitingEvents) {
> 412 if (isRunning) waitingEvents.add(packet);
> 413 else processEvent(packet);
> 414 }
> 415 } else {
> 416 waitingEvents.add(packet);
> 417 }
> 418 }
> 419
> 420 public void queueEventOfDeath() {
> 421 waitingEvents.add(eventOfDeath);
> 422 }
> 423
> 424 @Override
> 425 public void run() {
> 426 try {
> 427 isRunning = true;
> 428 while (true) {
> 429 Object event = waitingEvents.take();
> 430 if (event == eventOfDeath) {
> 431 wasKilled = true;
> 432 } else {
> 433 processEvent(event);
> 434 }
> 435 if (wasKilled)
> 436 synchronized (waitingEvents) {
> 437 if (waitingEvents.isEmpty()) {
> 438 isRunning = false;
> 439 break;
> 440 }
> 441 }
> 442 }
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