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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