Josh Elser created HBASE-21600:
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             Summary: Investigate non-null check on FSWALIdentity
                 Key: HBASE-21600
                 URL: https://issues.apache.org/jira/browse/HBASE-21600
             Project: HBase
          Issue Type: Task
            Reporter: Josh Elser
             Fix For: HBASE-20952


{code:java}
public FSWALIdentity(Path path) 

public FSWALIdentity(String name)
{code}

bq. Can we add a pre-null check or annotation NotNullable or javadoc to raise 
attention of no-null? Passing a null object to WALIdentity makes no sense to me.

Reid had the above suggestion on HBASE-21246. Should make a check throughout 
the code and make sure nothing else breaks if we start asserting that the 
path/name is always non-null (I fear something might :P).



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