ant-to-rake: <rake> task does not work when classpath is defined via taskdef's
attribute
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Key: JRUBY-4750
URL: http://jira.codehaus.org/browse/JRUBY-4750
Project: JRuby
Issue Type: Bug
Components: Miscellaneous
Affects Versions: JRuby 1.5.0.RC1
Environment: jruby 1.6.0.dev (ruby 1.8.7 patchlevel 249) (2010-04-24
6586) (Java HotSpot(TM) 64-Bit Server VM 1.6.0_17) [x86_64-java]
Reporter: Daniel Luz
When using a taskdef like the following
<taskdef name="rake" classname="org.jruby.ant.Rake"
classpath="lib/jruby-complete.jar"/>
invoking the rake task fails:
$ ant
BUILD FAILED
/Users/daniel/testproject/build.xml:7: Could not create type rake due to
java.lang.NullPointerException
The problem comes from this classloader, which is not the one where the JRuby
jar is located:
http://github.com/jruby/jruby/blob/fb5ae1b25a/src/org/jruby/embed/util/PropertyReader.java#L51
As such, the getResourceAsStream() call on line 53 returns null, which goes
around for a while until it blows everything.
When the task class is found via the environment CLASSPATH variable:
$ CLASSPATH=lib/jruby-complete.jar ant
everything works fine (even using the exact same build.xml, because CLASSPATH
takes precedence when searching).
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