Hongyuan Li created HADOOP-14469:
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             Summary: the listStatus method of FTPFileSystem should ignore the 
path "."  and ".."
                 Key: HADOOP-14469
                 URL: https://issues.apache.org/jira/browse/HADOOP-14469
             Project: Hadoop Common
          Issue Type: Bug
            Reporter: Hongyuan Li
            Assignee: Hongyuan Li


for some ftpsystems, liststatus method will return new Path(".") and new 
Path(".."), thus causing list op looping.We can see in code below:

{code}
  private FileStatus[] listStatus(FTPClient client, Path file)
      throws IOException {
    ……
    FileStatus[] fileStats = new FileStatus[ftpFiles.length];
    for (int i = 0; i < ftpFiles.length; i++) {
      fileStats[i] = getFileStatus(ftpFiles[i], absolute);
    }
    return fileStats;
  }
{code}



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