NPE on put method in CacheServiceImpl when cache is full.
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Key: DIRECTMEMORY-73
URL: https://issues.apache.org/jira/browse/DIRECTMEMORY-73
Project: Apache DirectMemory
Issue Type: Bug
Reporter: Michael André Pearce
If cache if full, and try doing a put with no buffers available so a null
pointer is returned from the memorymanager, this is then put into the hashmap
holding keys and values, thus causing npe.
Solutions proposed to fix this:
When null is returned from memory manager on allocation we dont put into the
key pointer map, and return null.
Questions to pose for how we want behaviour:
If key already exists in cache (i.e. update) do we want to remove existing
key/pointer (as obviously user wants a new value), and thus avoids incorrect
data presented.
Or by returning null to the user we expect them to know that update failed and
existing pointer /data will be kept.
Or finally we allow behaviour configurable?
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