[jruby-dev] [jira] (JRUBY-7176) "org.jruby.RubyNil cannot be cast to org.jruby.RubyMatchData" in multithreaded program

[Tony Arcieri (JIRA)]

Tony Arcieri created JRUBY-7176 "org.jruby.RubyNil cannot be cast to org.jruby.RubyMatchData" in multithreaded program Issue Type: Bug Affects Versions: JRuby 1.7.4 Assignee: Thomas E Enebo Created: 18/Jun/13 5:29 PM Description: I am encountering the following error using JRuby in a Storm topology via RedStorm: https://gist.github.com/tarcieri/e1cecb516337bf132ecb This corresponds to the following line of code: https://github.com/jruby/jruby/blob/1.7.4/src/org/jruby/RubyRegexp.java#L1575 The error only occurs when I increase the parallelism of the code executing the regex above 1. Increasing it to 2 (i.e. two contended threads) is sufficient to expose the problem. I can follow up separately with a reproduction of the problem. Project: JRuby Priority: Major Reporter: Tony Arcieri

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