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From "Daniel Bengtsson (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-9060) isSymlink returns false for link to non-existing file
Date Sun, 18 Nov 2012 20:00:59 GMT
Daniel Bengtsson created HADOOP-9060:
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             Summary: isSymlink returns false for link to non-existing file
                 Key: HADOOP-9060
                 URL: https://issues.apache.org/jira/browse/HADOOP-9060
             Project: Hadoop Common
          Issue Type: Bug
         Environment: Kubuntu 12.10 commons-io 2.4
            Reporter: Daniel Bengtsson


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)
	at org.apache.commons.io.FileUtils.sizeOf(FileUtils.java:2417)
	at org.apache.commons.io.FileUtils.sizeOfDirectory(FileUtils.java:2479)
	at org.apache.commons.io.FileUtils.sizeOf(FileUtils.java:2417)
	at org.apache.commons.io.FileUtils.sizeOfDirectory(FileUtils.java:2479)
	at org.apache.commons.io.FileUtils.sizeOf(FileUtils.java:2417)
	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);

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

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