JRuby jsr223 support incompatible with OSGI (should not use
currentThread().getContextClassLoader())
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Key: JRUBY-4806
URL: http://jira.codehaus.org/browse/JRUBY-4806
Project: JRuby
Issue Type: Bug
Components: Embedding
Affects Versions: JRuby 1.5
Environment: Jruby 1.5 + Java 1.6+ Mac OS X + Felix OSGI
Reporter: Morten Christensen
The new JRuby jsr223 support in JRuby 1.5 is hostile to OSGI because it uses
the context class loader:
Hence, if one try to use javax.script.ScriptEngineManager from a OSGI bundle
one will get "ScriptEngineManager providers.next():
javax.script.ScriptEngineFactory: Provider
org.jruby.embed.jsr223.JRubyEngineFactory could not be instantiated:
java.lang.NullPointerException".
This error is not so detailed but if one instantiate
org.jruby.embed.jsr223.JRubyEngineFactory instead, one will get
java.lang.NullPointerException
at java.util.Properties$LineReader.readLine(Properties.java:418)
at java.util.Properties.load0(Properties.java:337)
at java.util.Properties.load(Properties.java:325)
at
java.util.PropertyResourceBundle.<init>(PropertyResourceBundle.java:111)
at org.jruby.embed.util.PropertyReader.<init>(PropertyReader.java:52)
at
org.jruby.embed.jsr223.JRubyEngineFactory.<init>(JRubyEngineFactory.java:65)
Then, looking at the source for org.jruby.embed.util.PropertyReader, I can see
it uses "Thread.currentThread().getContextClassLoader()". This is a NO NO in
OSGI and will NOT work in standard OSGI environments. Instead, the JRuby jsr223
support should use the classloader argument passed to
javax.script.ScriptEngineManager !!
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