Backtrace frames can cause NPE if something tries to update backref
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Key: JRUBY-2234
URL: http://jira.codehaus.org/browse/JRUBY-2234
Project: JRuby
Issue Type: Bug
Components: Miscellaneous
Reporter: Charles Oliver Nutter
Fix For: JRuby 1.1
See JRUBY-2233. Because backtrace does not have self set, using backtrace-only
frames can lead to NPEs later on if some piece of code tries to update the
backref (which uses self to get runtime to get nil). We need to do an audit of
what methods update backref and figure out how to fit that with frame
optimizations and avoid NPEs like this.
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