[jira] [Created] (HDFS-7031) Path#makeQualified copies authority when scheme does not match

[Ryan Blue (JIRA)]

Ryan Blue created HDFS-7031:
-------------------------------

             Summary: Path#makeQualified copies authority when scheme does not 
match
                 Key: HDFS-7031
                 URL: https://issues.apache.org/jira/browse/HDFS-7031
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: hdfs-client
    Affects Versions: 2.3.0
            Reporter: Ryan Blue


I have an application that calls {{makeQualified}} that amounts to this:

{code:java}
new Path("file:/some/local/path").makeQualified(
    URI.create("hdfs://nn:8020"), new Path("/"));
{code}

This unexpectedly produces {{file://nn:8020/some/local/path}}, using the 
authority section from the default URI even though the path that is being 
qualified doesn't have a scheme that matches the default URI.

In {{Path}}, there is a check to see if the default URI should be used:
{code:java}
    if (scheme != null &&
        (authority != null || defaultUri.getAuthority() == null))
      return path;
{code}

I think this should be:
{code:java}
    // if the scheme matches and there is no authority, use the default
    if (scheme != null && scheme.equals(defaultUri.getScheme()) &&
        (authority != null || defaultUri.getAuthority() == null))
      return path;
{code}




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