[jruby-dev] [jira] (JRUBY-6995) Raising an Exception from #each wrapped in Enumerator.new results in StopIteration

Wed, 14 Nov 2012 10:28:18 -0800

Issue Type: Bug Bug
Affects Versions: JRuby 1.7.0
Assignee: Thomas E Enebo
Created: 14/Nov/12 12:27 PM
Description:

If you have an exception raised in #each method, the actual exception is StopIteration.

Note that Enumerator.new is used due to JRUBY-6581.

Test case:

class MyError < Exception; end

class Test
  def each
    yield 1
    raise MyError.new
  end
end

obj = Test.new
enum = Enumerator.new(obj)

begin
  puts enum.next # => 1
  puts enum.next # => MyError raised
rescue MyError
  puts "ok"
rescue
  puts "fail"
end

MRI, RBX output:

1
ok

JRuby output:

fail
Project: JRuby
Priority: Major Major
Reporter: Vladimir Pouzanov
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