steveloughran commented on PR #5553:
URL: https://github.com/apache/hadoop/pull/5553#issuecomment-1513370122

   there must still be a CommonPathCapabilities name as we will also need to 
have to consider about having
   
   * filterfs implement and pass through to the wrapped fs
   * viewfs to pass down to resolved fs.
   
   a cast and a hasPathCapability() is the safe way, as for any of the wrappers 
it will let you know if the method works all the way through.
   
   oh, and if we do the viewfs/filterfs (which I don't think we need...yet), 
then we will need tests that they pass through to hdfs.
   


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