msgpack_tiny_bignum_jruby_interop.rb

require 'bundler/inline'

gemfile true do
  source "https://rubygems.org"
  gem 'msgpack'
end
puts "#" * 90

puts "#{RUBY_ENGINE} #{RUBY_VERSION} #{RUBY_PLATFORM}"
puts "MessagePack::VERSION: #{MessagePack::VERSION}"

require 'java'
tiny_bignum = org.jruby.RubyBignum.long2big(123)

puts "#{tiny_bignum} | #{tiny_bignum.class}"

MessagePack.pack("test" => tiny_bignum)


__END__
jruby 2.3.0 java
MessagePack::VERSION: 0.7.5
123 | Bignum
Unhandled Java exception: java.lang.IndexOutOfBoundsException
java.lang.IndexOutOfBoundsException: null
         checkBounds at java/nio/Buffer.java:567
                 put at java/nio/HeapByteBuffer.java:187
        appendBignum at org/msgpack/jruby/Encoder.java:134
        appendObject at org/msgpack/jruby/Encoder.java:106
        appendObject at org/msgpack/jruby/Encoder.java:95
          access$000 at org/msgpack/jruby/Encoder.java:29
               visit at org/msgpack/jruby/Encoder.java:312
        visitLimited at org/jruby/RubyHash.java:661
            visitAll at org/jruby/RubyHash.java:647
  appendHashElements at org/msgpack/jruby/Encoder.java:296
          appendHash at org/msgpack/jruby/Encoder.java:271
        appendObject at org/msgpack/jruby/Encoder.java:118
              encode at org/msgpack/jruby/Encoder.java:75
               write at org/msgpack/jruby/Packer.java:108
                pack at org/msgpack/jruby/MessagePackLibrary.java:114
                call at org/jruby/internal/runtime/methods/JavaMethod.java:720
                call at org/jruby/internal/runtime/methods/DynamicMethod.java:197
        cacheAndCall at org/jruby/runtime/callsite/CachingCallSite.java:313
                call at org/jruby/runtime/callsite/CachingCallSite.java:163
         processCall at org/jruby/ir/interpreter/InterpreterEngine.java:316
           interpret at org/jruby/ir/interpreter/StartupInterpreterEngine.java:77
      INTERPRET_ROOT at org/jruby/ir/interpreter/Interpreter.java:112
             execute at org/jruby/ir/interpreter/Interpreter.java:99
             execute at org/jruby/ir/interpreter/Interpreter.java:35
             execute at org/jruby/ir/IRTranslator.java:42
      runInterpreter at org/jruby/Ruby.java:868
      runInterpreter at org/jruby/Ruby.java:873
         runNormally at org/jruby/Ruby.java:765
         runFromMain at org/jruby/Ruby.java:579
       doRunFromMain at org/jruby/Main.java:425
         internalRun at org/jruby/Main.java:313
                 run at org/jruby/Main.java:242
                main at org/jruby/Main.java:204