block in class << self in a def does not execute when JIT'd

[enebo]

Originally from JRUBY-4963 (works in both 1.7 and 9000 interpreters):

def hello
  class << self
    yield
  end
end

p(hello { 123 })

[jvbreen1]

This is my first time commenting on a JRuby issue, so please let me know if I understand correctly. You're expecting the error from http://comments.gmane.org/gmane.comp.lang.jruby.devel/8456 to occur when I execute the code above in JIT mode?

If so, I'm not seeing that error:

➜  ~  cat test.rb
def hello
  class << self
    yield
  end
end

p(hello { 123 })
➜  ~  jruby test.rb
123
➜  ~  jruby -v
jruby 9.0.3.0 (2.2.2) 2015-10-21 633c9aa Java HotSpot(TM) 64-Bit Server VM 25.60-b23 on 1.8.0_60-b27 +jit [darwin-x86_64]

➜  ~  Work/jruby/bin/jruby -v
jruby 9.1.0.0-SNAPSHOT (2.2.3) 2016-02-24 9fc6fb1 Java HotSpot(TM) 64-Bit Server VM 25.60-b23 on 1.8.0_60-b27 +jit [darwin-x86_64]
➜  ~  Work/jruby/bin/jruby test.rb
123

Is there a specific environment here? I see the original issue is quite old. I'm running on a MacBook Pro with OS X Mavericks.