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https://issues.apache.org/jira/browse/CURATOR-108?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14007231#comment-14007231
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Jordan Zimmerman commented on CURATOR-108:
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I don't think this is the right approach. What would be better is a way to set
a default value for a fresh DAV.
> Wrong usage of Arrays.equals in DistributedAtomicValue for values equality
> test
> -------------------------------------------------------------------------------
>
> Key: CURATOR-108
> URL: https://issues.apache.org/jira/browse/CURATOR-108
> Project: Apache Curator
> Issue Type: Bug
> Components: Recipes
> Reporter: Alex Lopashev
> Priority: Critical
> Labels: easyfix
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> Without setting value ZooKeeper DistributedAtomicValue instance returns
> byte[0]{} as its value, but in #compareAndSet method expectedValue is always
> non-zero-sized byte array, so in fresh new DistributedAtomicValue with no
> data in ZooKeeper node test Arrays.equals(byte[4]{0,0,0,0}, byte[0]{}) for
> integer and Arrays.equals(byte[8]{0,0,0,0,0,0,0,0}, byte[0]{}) will always
> fail. Solution is to not only check with Arrays.equals, but also if one of
> byte arrays is empty then check if second one has only zero elements.
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