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Posted to dev@zookeeper.apache.org by "Alexander Shraer (JIRA)" <ji...@apache.org> on 2014/07/03 21:04:34 UTC
[jira] [Updated] (ZOOKEEPER-1683) ZooKeeper client NPE when
updating server list on disconnected client
[ https://issues.apache.org/jira/browse/ZOOKEEPER-1683?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alexander Shraer updated ZOOKEEPER-1683:
----------------------------------------
Attachment: ZOOKEEPER-1683-ver3.patch
rebasing for trunk
> ZooKeeper client NPE when updating server list on disconnected client
> ---------------------------------------------------------------------
>
> Key: ZOOKEEPER-1683
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1683
> Project: ZooKeeper
> Issue Type: Bug
> Components: java client
> Affects Versions: 3.5.0
> Reporter: Shevek
> Assignee: Alexander Shraer
> Fix For: 3.5.0
>
> Attachments: ZOOKEEPER-1683-ver1.patch, ZOOKEEPER-1683-ver2.patch, ZOOKEEPER-1683-ver2.patch, ZOOKEEPER-1683-ver3.patch, ZOOKEEPER-1683.patch
>
>
> 2013-04-04 22:16:15,872 ERROR [pool-4-thread-1] com.netflix.curator.ConnectionState.getZooKeeper (ConnectionState.java:84) - Background exception caught
> java.lang.NullPointerException
> at org.apache.zookeeper.client.StaticHostProvider.updateServerList(StaticHostProvider.java:161) ~[zookeeper-3.5.0.jar:3.5.0--1]
> at org.apache.zookeeper.ZooKeeper.updateServerList(ZooKeeper.java:183) ~[zookeeper-3.5.0.jar:3.5.0--1]
> at com.netflix.curator.HandleHolder$1$1.setConnectionString(HandleHolder.java:121) ~[curator-client-1.3.5-SNAPSHOT.jar:?]
> The duff code is this:
> ClientCnxnSocket clientCnxnSocket = cnxn.sendThread.getClientCnxnSocket();
> InetSocketAddress currentHost = (InetSocketAddress) clientCnxnSocket.getRemoteSocketAddress();
> boolean reconfigMode = hostProvider.updateServerList(serverAddresses, currentHost);
> Now, currentHost might be null, if we're not yet connected. But StaticHostProvider.updateServerList indirects on it unconditionally.
> This would be caught by findbugs.
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