[jira] [Created] (CURATOR-583) Fix ArrayIndexOutOfBoundsException when passing empty list parameter to reconfigure API

["hyeong jun yun (Jira)" <ji...@apache.org>]

hyeong jun yun created CURATOR-583:
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             Summary: Fix ArrayIndexOutOfBoundsException when passing empty list parameter to reconfigure API
                 Key: CURATOR-583
                 URL: https://issues.apache.org/jira/browse/CURATOR-583
             Project: Apache Curator
          Issue Type: Bug
          Components: Framework
    Affects Versions: 5.1.0
            Reporter: hyeong jun yun


Whenever I add zookeeper servers by using reconfig API of the curator client, it always throw ArrayIndexOutOfBoundsException.

If there are no servers to add or remove when using reconfigure API of ZooKeeperAdmin, I think it must pass not empty list parameter but null to reconfigure API. Because ZooKeeperAdmin tries to join strings by accessing first index of the server list.

Please refer to the link below.

https://github.com/apache/zookeeper/blob/release-3.6.2/zookeeper-server/src/main/java/org/apache/zookeeper/admin/ZooKeeperAdmin.java#L267-L269

https://github.com/apache/zookeeper/blob/release-3.6.2/zookeeper-server/src/main/java/org/apache/zookeeper/common/StringUtils.java#L57



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