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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (HBASE-5722) NPE in ZKUtil#getChildDataAndWatchForNewChildren when ZK not available or NW down.
Date Fri, 12 Oct 2012 05:39:13 GMT

     [ https://issues.apache.org/jira/browse/HBASE-5722?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lars Hofhansl closed HBASE-5722.
--------------------------------

    
> NPE in ZKUtil#getChildDataAndWatchForNewChildren when ZK not available or NW down.
> ----------------------------------------------------------------------------------
>
>                 Key: HBASE-5722
>                 URL: https://issues.apache.org/jira/browse/HBASE-5722
>             Project: HBase
>          Issue Type: Bug
>          Components: Zookeeper
>    Affects Versions: 0.94.0, 0.96.0
>            Reporter: Uma Maheswara Rao G
>            Assignee: Uma Maheswara Rao G
>             Fix For: 0.94.1, 0.96.0
>
>         Attachments: HBASE-5722.patch
>
>
> {code}
> List<String> nodes =
>       ZKUtil.listChildrenAndWatchForNewChildren(zkw, baseNode);
>     List<NodeAndData> newNodes = new ArrayList<NodeAndData>();
>     for (String node: nodes) {
>       String nodePath = ZKUtil.joinZNode(baseNode, node);
>       byte [] data = ZKUtil.getDataAndWatch(zkw, nodePath);
>       newNodes.add(new NodeAndData(nodePath, data));
>     }
> {code}
> The above code can throw NPE when listChildrenAndWatchForNewChildren returns null.

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