rescue doesn't work with SystemExit exceptions (Regression)
-----------------------------------------------------------
Key: JRUBY-1618
URL: http://jira.codehaus.org/browse/JRUBY-1618
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules
Affects Versions: JRuby 1.x
Environment: Ubuntu Linux,
ruby 1.8.5 (2007-11-25 rev 4842) [i386-jruby1.1b1]
Reporter: Vladimir Sizikov
Priority: Critical
Attachments: thread_exit.diff
Rescue doesn't work with SystemExit. So, the following example (from Pickaxe
book, no less), doesn't work as expected:
begin
exit(99)
rescue SystemExit => e
puts "Rescued SystemExit"
end
puts "Finished Normally"
So, under MRI:
Rescued SystemExit
Finished Normally
(and the exit status is 0, as expected)
Under JRuby: (no output!, as if JRuby exited right away, before the rescue is
executed),
and the exit status is 99.
I've tracked down the origin of the problem to bugfix for JRUBY-1286. So, this
is a regression.
Also, this problem manifests itself when running Rubinius spec tests for
Thread, since SystemExit is being thrown there for testing purposes, but JRuby
exits right away, not finishing the test run!
The provided patch fixes this problem (but I'm not sure about the problem
described in JRUBY-1286, will it reappear or not).
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