gistfile1.rb

   class Channel < org.jgroups.JChannel

    alias_method :old_send, :send

    def initialize
      super
      # if options
      #   @jchannel = org.jgroups.JChannel.new(options)
      # else
      #   @jchannel = org.jgroups.JChannel.new
      # end

      @receiver = Receiver.new
      set_receiver(@receiver)
    end

    def connect(cluster, &blk)
      # calling super(cluster) produces an error in the CodeGenUtils java class
      # -- so hacking around it
      # oddly just renaming my method to rconnect and calling the super's connect
      # method works just fine ex:
      # def rconnect(cluster, &blk)
      #   connect(cluster)
      org.jgroups.JChannel.instance_method(:connect).bind(self).call(cluster)
      @receiver.register_receiver(blk)
    end

    def send(msg, options={})
      destination = options[:destination]
      source = options[:source]
      message = Message.new(destination,source,msg)
      super(message)
    end

  end

CodegenUtils.java:98:in human': java.lang.NullPointerException from CodegenUtils.java:152:inprettyParams'
from CallableSelector.java:462:in argumentError' from CallableSelector.java:436:inargTypesDoNotMatch'
from RubyToJavaInvoker.java:248:in findCallableArityTwo' from InstanceMethodInvoker.java:120:incall'
from SuperCallSite.java:366:in cacheAndCall' from SuperCallSite.java:192:incallBlock'
from SuperCallSite.java:197:in call' from SuperCallSite.java:108:incallVarargs'
from ZSuperNode.java:102:in interpret' from NewlineNode.java:104:ininterpret'
from BlockNode.java:71:in interpret' from ASTInterpreter.java:75:inINTERPRET_METHOD'
from InterpretedMethod.java:212:in call' from DefaultMethod.java:187:incall'
from CachingCallSite.java:322:in cacheAndCall' from CachingCallSite.java:178:incallBlock'
from CachingCallSite.java:187:in callIter' from rchat_test.rb:14:inmethod__2$RUBY$start'
from rchat_test$method__2$RUBY$start:65535:in call' from rchat_test$method__2$RUBY$start:65535:incall'
from CachingCallSite.java:292:in cacheAndCall' from CachingCallSite.java:135:incall'
from rchat_test.rb:44:in __file__' from rchat_test.rb:-1:inload'
from Ruby.java:679:in runScript' from Ruby.java:672:inrunScript'
from Ruby.java:579:in runNormally' from Ruby.java:428:inrunFromMain'
from Main.java:278:in doRunFromMain' from Main.java:198:ininternalRun'
from Main.java:164:in run' from Main.java:148:inrun'
from Main.java:128:in `main'