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Redefine uri classloader meaning #2278

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merged 2 commits into from Dec 6, 2014

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mkristian
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to use uri:classloader:/ only makes sense if jruby is really loading from the Thread.currentThread().getContextClassLoader() (CCL), so in order to use it you first need to check runtime.getJRubyClassLoader.getParent to be CCL and if not supply some alternative.

this PR redefines uri:classloader:/ to be runtime.getJRubyClassLoader.getParent which always in all possible situation will pick the same classloader, the one which loaded jruby itself.

@enebo
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enebo commented Dec 5, 2014

Will this break any existing applications? Your change means it will always pick the same CL that loaded JRuby but is there the possibility that somone intended to load from a different CL or would that not work unless jruby CL is parent of another? I guess I am asking if there is any chance of regressions to better understand the risk.

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the change is to pick always runtime.getJRubyClassLoader.getParent and this
classloader comes fromthe RubyInstanceConfig or via
ScriptingContainer.setClassLoader.

regression - well uri:classloader: is only used by
IsolatedScriptingContainer right now. I assume I am the only one which is
going to use it after jruby-1.7.17 is released ;)

@mkristian
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@enebo now since #2055 is fixed without uri:classloade: there is not risk in this anymore ! I am going to merge this so we can finally use it for https://github.com/sonatype/nexus-oss which will see quite some testing then.

…time.getJRubyClassLoader

this allows to set JRubyHome to uri:classloader:/META-INF/jruby.home for all situations where
there is a jruby.home packed inside a jar.

fixes problem with loadService and knoplerfish OSGi

fixed missed test and cleanup javadocs and add more junit-tests for uri:classloader:

make IsolatedScriptingContainer work on felix-4.2.1 and probably on other osgi frameworks outside the pax test cases
@mkristian mkristian force-pushed the redefine-uri-classloader-meaning branch from 3cb1927 to b04987a Compare December 6, 2014 12:01
mkristian added a commit that referenced this pull request Dec 6, 2014
@mkristian mkristian merged commit 1eedf72 into jruby-1_7 Dec 6, 2014
@mkristian mkristian deleted the redefine-uri-classloader-meaning branch December 6, 2014 12:02
@mkristian
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@enebo I also made a little change before I merged it to use runtime.getJRubyClassLoader as meaning of "uri:classloader:/" which actually matches how findLibraryWithClassloaders works.

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enebo commented Dec 6, 2014

Cool. Glad to see this work out for release.

@headius headius modified the milestone: Invalid or Duplicate May 4, 2015
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3 participants