JIT-ed class names only use method names, causing collisions
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Key: JRUBY-6202
URL: https://jira.codehaus.org/browse/JRUBY-6202
Project: JRuby
Issue Type: Bug
Components: Compiler
Affects Versions: JRuby 1.6.5, JRuby 1.7
Reporter: Nick Sieger
Assignee: Nick Sieger
Fix For: JRuby 1.6.6, JRuby 1.7
The JIT compiler calculates method java class names using only the bare method
name plus the method contents. So if two unrelated classes have the identical
method names and bodies, one method will overwrite the other. In the case where
the method has for example an fcall call-site, the destination for the call
site is different between the two methods.
Originally spotted in Travis, see the following gists for details.
https://gist.github.com/1355138
https://gist.github.com/5934af6ad8774e296461
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