FYI this is on OSX 10.8.2 and Java version 1.6.0_37

I have a feeling this is the same underlying issue as #511 - namely, not a problem with io/console.rb (as you demonstrated with the cut-down code sample), but with fileno mapping in JRuby not reflecting the actual underlying fileno.

Can you figure out if party_foul is doing anything like re-opening stdin/out/err?

@wmeissner party_foul is using thor for a Rails generator which itself will make use of $stdin.gets in the ask_simply method: https://github.com/wycats/thor/blob/master/lib/thor/shell/basic.rb#L373

Other than that party_foul is not doing anything special.

Can you try with jruby-head (or apply commit fc2d4e6 to jruby-1.7.2)?

No effect, same error. I compiled from source and am on 1.7.3.dev

@bcardarella Can I ask you to run git bisect to see if you can pinpoint the bad commit that introduced the problem?

Thank you.

I believe this issue to be fixed, I've cloned the repository in question and run the tests on JRuby 9k and they work just fine on Debian/JDK8

➜  party_foul git:(master) rake test
Run options: --seed 13358

# Running tests:

.....................................................

Finished tests in 0.988000s, 53.6437 tests/s, 122.4696 assertions/s.

53 tests, 121 assertions, 0 failures, 0 errors, 0 skips
➜  party_foul git:(master) ruby -e "puts JRUBY_VERSION"
9.0.0.0
➜  party_foul git:(master) git log --oneline -n 1     
2678572 Merge pull request #114 from mkozono/prevent-exceptions
➜  party_foul git:(master)