localRepository as file URL in settings.xml makes unpacking dependencies fail:
expanding into null
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Key: MDEP-162
URL: http://jira.codehaus.org/browse/MDEP-162
Project: Maven 2.x Dependency Plugin
Issue Type: Bug
Components: unpack-dependencies
Affects Versions: 2.0
Environment: Windows XP
Reporter: Heiko Selber
Assignee: Brian Fox
Priority: Minor
Attachments: expanding_into_null.txt
I specified the localRepository in settings.xml like this:
<localRepository>file:///C:/.m2/repository</localRepository>
Using a file URL is apparently valid for artifacts which are only downloaded.
However, when a dependency is to be expanded to .unpacked-modules, a file URL
leads to failure.
The dependency is unpacked to the directory where mvn was started.
The console output shows this line:
[INFO] Expanding:
c:\.m2\repository\com\company\project\activemq-cpp\2.1.3_02\activemq-cpp-2.1.3_02-win32.zip
into null
Debug output is attached, look for outputDirectory.
The problem here is an inconsistency in treating a file URL; it is correctly
used by some modules, but incorrectly by others.
Possible solutions:
1. Accept file URLs everywhere (preferred)
2. Don't accept file URLs anywhere and fail cleanly when file URL is encountered
3. Document clearly in which format the path is to be given
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