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https://issues.apache.org/jira/browse/HBASE-5722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13247701#comment-13247701
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stack commented on HBASE-5722:
------------------------------
+1 on patch. Will wait on hadoopqa.
> 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: 0.96.0
> Reporter: Uma Maheswara Rao G
> Assignee: Uma Maheswara Rao G
> 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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