Steve Loughran created HADOOP-18767:
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             Summary: WeakReferenceMap creation warning log doesn't format 
correctly
                 Key: HADOOP-18767
                 URL: https://issues.apache.org/jira/browse/HADOOP-18767
             Project: Hadoop Common
          Issue Type: Bug
          Components: fs
    Affects Versions: 3.3.5
            Reporter: Steve Loughran


{{WeakReferenceMap.create(K key)}} logs once at warning level if a reference to 
a key was lost during creation.



{code}
referenceLostDuringCreation.warn("reference to %s lost during creation", key);
{code}
but it uses %s as the insertion point for the key, when it should be {}.

this means the log, if it ever surfaces, won't include the key. 

i don't think this is a very important issue, but it exists.




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