JRuby MRI Failures

     [exec]   1) Failure:
     [exec] TestDefined#test_defined_impl_specific [/home/travis/build/jruby/jruby/test/mri/ruby/test_defined.rb:105]:
     [exec] [ruby-core:47558].
     [exec] Expected "constant" (oid=11660) to be the same as "constant" (oid=11662).
     [exec] 
     [exec]   2) Failure:
     [exec] TestHash#test_ASET_fstring_key [/home/travis/build/jruby/jruby/test/mri/ruby/test_hash.rb:229]:
     [exec] Expected "abc" (oid=13312) to be the same as "abc" (oid=13314).
     [exec] 
     [exec]   3) Failure:
     [exec] TestHash::TestSubHash#test_ASET_fstring_key [/home/travis/build/jruby/jruby/test/mri/ruby/test_hash.rb:229]:
     [exec] Expected "abc" (oid=13384) to be the same as "abc" (oid=13386).
     [exec] 
     [exec]   4) Failure:
     [exec] TestObject#test_implicit_respond_to [/home/travis/build/jruby/jruby/test/mri/ruby/test_object.rb:492]:
     [exec] [ruby-core:38799].
     [exec] <[[:respond_to?, :to_ary, true]]> expected but was
     [exec] <[[:respond_to?, "to_ary", true]]>.
     [exec] 
     [exec]   5) Failure:
     [exec] TestObject#test_implicit_respond_to_arity_3 [/home/travis/build/jruby/jruby/test/mri/ruby/test_object.rb:521]:
     [exec] [bug:6000].
     [exec] Expected Exception(ArgumentError) was raised, but the message doesn't match.
     [exec] <"respond_to? must accept 1 or 2 arguments (requires 3)"> expected but was
     [exec] <"respond_to? must accept 1 or 2 arguments (requires Fixed3)">.
     [exec] 
     [exec]   6) Error:
     [exec] TestObject#test_implicit_respond_to_arity_1:
     [exec] ArgumentError: wrong number of arguments (2 for 1)
     [exec]     org/jruby/RubyArray.java:2883:in `flatten'
     [exec]     /home/travis/build/jruby/jruby/test/mri/ruby/test_object.rb:505:in `test_implicit_respond_to_arity_1'