Kernel#exec should not raise SystemExit
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Key: JRUBY-2252
URL: http://jira.codehaus.org/browse/JRUBY-2252
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules
Affects Versions: JRuby 1.1RC2
Environment: JRuby 1.1RC2, Linux, Windows
Reporter: Vladimir Sizikov
Priority: Minor
Attachments: exec-test.rb
After fix for JRUBY-1988 (rev. 5634), the Kernel#exec method always raises
SystemExit to simulate MRI's exec behavior, where exec'ed process replaces the
original one. There is a minor problem with this approach - the raised
SystemExit can be rescued from within the script, which is not possible in MRI.
Ideally, we should raise in such a way that it's not possible to the parent
script to see and rescue the exception.
Attached test case shows the problem.
With MRI, the test run is replaced with the sub-process.
In JRuby, the SystemExit is raised (and rescued by the test, allowing to
continue the execution):
{noformat}
1) Failure:
test_exec_nothing_raised(ExecTest) [exec-test.rb:7]:
Exception raised:
Class: <SystemExit>
Message: <"exit">
---Backtrace---
exec-test.rb:7:in `test_exec_nothing_raised'
---------------
{noformat}
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