Alex Lopashev created CURATOR-108:
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Summary: 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
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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