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https://issues.apache.org/jira/browse/ZOOKEEPER-2467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15365515#comment-15365515
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Joshi Shankar commented on ZOOKEEPER-2467:
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will provide patch for this.
> NullPointerException when redo Command is passed negative value
> ---------------------------------------------------------------
>
> Key: ZOOKEEPER-2467
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2467
> Project: ZooKeeper
> Issue Type: Bug
> Components: java client
> Affects Versions: 3.4.6, 3.5.1
> Environment: Linux , windows
> Reporter: Joshi Shankar
> Priority: Minor
>
> When negative value of argument is passed to redo command .
> [zk: localhost:2181(CONNECTED) 0] redo -1
> Exception in thread "main" java.lang.NullPointerException
> at java.util.StringTokenizer.<init>(Unknown Source)
> at java.util.StringTokenizer.<init>(Unknown Source)
> at
> org.apache.zookeeper.ZooKeeperMain$MyCommandOptions.parseCommand(ZooKeeperMain.java:227)
> at
> org.apache.zookeeper.ZooKeeperMain.processZKCmd(ZooKeeperMain.java:645)
> at
> org.apache.zookeeper.ZooKeeperMain.processCmd(ZooKeeperMain.java:588)
> at
> org.apache.zookeeper.ZooKeeperMain.executeLine(ZooKeeperMain.java:360)
> at org.apache.zookeeper.ZooKeeperMain.run(ZooKeeperMain.java:323)
> at org.apache.zookeeper.ZooKeeperMain.main(ZooKeeperMain.java:282)
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