[jira] [Comment Edited] (ZOOKEEPER-3881) org.apache.zookeeper.ZooKeeper.getData may throw NullPointerException when copyStat with null response stat.

["Christopher Tubbs (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-3881?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17284788#comment-17284788 ] 

Christopher Tubbs edited comment on ZOOKEEPER-3881 at 2/15/21, 4:00 PM:
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Based on the reporter's comments, it does not appear to occur on newer versions. So, I will close this, and remove the fixVersion. Please re-open or create a new issue if it happens again.


was (Author: ctubbsii):
Based on the reporter's comments, it does not apply to newer versions. So, I will close this, and remove the fixVersion.

> org.apache.zookeeper.ZooKeeper.getData may throw NullPointerException when copyStat with null response stat.
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: ZOOKEEPER-3881
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3881
>             Project: ZooKeeper
>          Issue Type: Bug
>          Components: java client
>    Affects Versions: 3.4.13
>         Environment: zookeeper-3.4.13
>            Reporter: FengGao
>            Priority: Critical
>
> We use curator 4.2.0 and zookeeper 3.4.13 as client, when we call curator PathChildrenCache.start(), It calls Zookeeper.getData(), but getData throw an NPE, please help check is it an BUG? Thanks.
> "2020-07-02 00:17:31,697" [UTC:20200702T001731+0700]|Error||DeployWorkThread-6|CONFIG > Failed to watch config of unit:ae9224e172952800c3b7a,type:global_configuration. com.huawei.itpaas.config.sdk.service.ConfigurationService.doCommonConfigWatcher(ConfigurationService.java:999)"2020-07-02 00:17:31,697" [UTC:20200702T001731+0700]|Error||DeployWorkThread-6|CONFIG > Failed to watch config of unit:ae9224e172952800c3b7a,type:global_configuration. com.huawei.itpaas.config.sdk.service.ConfigurationService.doCommonConfigWatcher(ConfigurationService.java:999)java.lang.NullPointerException: null at org.apache.zookeeper.server.DataTree.copyStat(DataTree.java:253) ~[zookeeper-3.4.13.fixed.20200331.jar:3.4.13--1] at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1226) ~[zookeeper-3.4.13.fixed.20200331.jar:3.4.13--1] at org.apache.curator.framework.imps.GetDataBuilderImpl$4.call(GetDataBuilderImpl.java:327) ~[curator-framework-4.2.0.jar:4.2.0] at org.apache.curator.framework.imps.GetDataBuilderImpl$4.call(GetDataBuilderImpl.java:316) ~[curator-framework-4.2.0.jar:4.2.0] at org.apache.curator.connection.StandardConnectionHandlingPolicy.callWithRetry(StandardConnectionHandlingPolicy.java:64) ~[curator-client-4.2.0.jar:?] at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:100) ~[curator-client-4.2.0.jar:?] at org.apache.curator.framework.imps.GetDataBuilderImpl.pathInForeground(GetDataBuilderImpl.java:313) ~[curator-framework-4.2.0.jar:4.2.0] at org.apache.curator.framework.imps.GetDataBuilderImpl.forPath(GetDataBuilderImpl.java:304) ~[curator-framework-4.2.0.jar:4.2.0] at org.apache.curator.framework.imps.GetDataBuilderImpl$2.forPath(GetDataBuilderImpl.java:145) ~[curator-framework-4.2.0.jar:4.2.0] at org.apache.curator.framework.imps.GetDataBuilderImpl$2.forPath(GetDataBuilderImpl.java:141) ~[curator-framework-4.2.0.jar:4.2.0] at org.apache.curator.framework.recipes.cache.PathChildrenCache.internalRebuildNode(PathChildrenCache.java:633) ~[curator-recipes-4.2.0.jar:4.2.0] at org.apache.curator.framework.recipes.cache.PathChildrenCache.rebuild(PathChildrenCache.java:335) ~[curator-recipes-4.2.0.jar:4.2.0] at org.apache.curator.framework.recipes.cache.PathChildrenCache.start(PathChildrenCache.java:304) ~[curator-recipes-4.2.0.jar:4.2.0] at com.huawei.itpaas.config.sdk.service.ConfigurationService.doCommonConfigWatcher(ConfigurationService.java:965) [com.huawei.itpaas.configservice.sdk-6.1.4-RELEASE.jar:?] at com.huawei.itpaas.config.sdk.impl.ConfigPluginImpl.watchCommonGlobal(ConfigPluginImpl.java:383) [com.huawei.itpaas.configservice.sdk-6.1.4-RELEASE.jar:?] at com.huawei.itpaas.agent.deploy.plugin.configuration.support.ConfigMgmtImpl.watchFiles(ConfigMgmtImpl.java:374) [com.huawei.itpaas.agent.deploy.plugin-6.1.4-RELEASE.jar:?] at com.huawei.itpaas.agent.deploy.plugin.engine.commands.bind.BindCommand.watchFiles(BindCommand.java:196) [com.huawei.itpaas.agent.deploy.plugin-6.1.4-RELEASE.jar:?] at com.huawei.itpaas.agent.deploy.plugin.engine.commands.bind.BindCommand.importSchema(BindCommand.java:187) [com.huawei.itpaas.agent.deploy.plugin-6.1.4-RELEASE.jar:?] at com.huawei.itpaas.agent.deploy.plugin.engine.commands.bind.BindCommand.run(BindCommand.java:70) [com.huawei.itpaas.agent.deploy.plugin-6.1.4-RELEASE.jar:?] at com.huawei.itpaas.agent.deploy.plugin.engine.commands.bind.BindCommand.run(BindCommand.java:1) [com.huawei.itpaas.agent.deploy.plugin-6.1.4-RELEASE.jar:?] at com.huawei.itpaas.agent.deploy.engine.run.CommandRunner.runOneCommand(CommandRunner.java:246) [com.huawei.itpaas.agent.deploy.engine-6.1.4-RELEASE.jar:?] at com.huawei.itpaas.agent.deploy.engine.run.CommandRunner.access$1(CommandRunner.java:234) [com.huawei.itpaas.agent.deploy.engine-6.1.4-RELEASE.jar:?] at com.huawei.itpaas.agent.deploy.engine.run.CommandRunner$AsyncScheduler.run(CommandRunner.java:198) [com.huawei.itpaas.agent.deploy.engine-6.1.4-RELEASE.jar:?] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_242] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_242] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_242]



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