org.apache.hadoop.io.MapFile.Reader.Reader(FileSystem fs, String dirName, Configuration conf) constructor ignores the FileSystem

[Subroto]

Hi,

The constructor of Reader class ignores the FileSystem parameter provided in 
the constructor parameter.
This results in creation of Path on the basis of default FileSystem mentioned 
in the configuration even though user wants to pass LocalFileSystem.

The behavior has been verified with cdh4b2 version. Is this a correct behavior 
of the API?

Cheers,
Subroto Sanyal