[HADOOP-9060] isSymlink returns false for link to non-existing file

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved

Environment

Kubuntu 12.10 commons-io 2.4

• Assignee: Unassigned
• Reporter: Daniel Bengtsson
• Created: 18/Nov/12 20:00
• Updated: 02/May/17 10:30

Description

This problem showed when trying to use FileUtils.sizeOfDirectory() of a directory that contained a symlink to a file that did not exist. I got the exception:

java.lang.IllegalArgumentException: /tmp/test/link does not exist
at org.apache.commons.io.FileUtils.sizeOf(FileUtils.java:2413)
at org.apache.commons.io.FileUtils.sizeOfDirectory(FileUtils.java:2479)

And /tmp/test/link is here linking to a file that do not exist.

The trace comes from a unit test that looks like:

assertTrue(FileUtils.sizeOfDirectory(new File("/tmp/test/")) > 0);

I would expect that either isSymlink() reported true even though the link is to a file that do not exist or sizeOfDirectory() should not bail out when encountering non-existing files.

Issue Links

• is blocked by: HADOOP-9984 FileSystem#globStatus and FileSystem#listStatus should resolve symlinks by default