require 'java'

task = java.util.concurrent.FutureTask.new { "HEH" }
es = java.util.concurrent.Executors.newSingleThreadExecutor
es.submit task

require 'java'

fp = java.lang.Class.forName("java.lang.ClassLoader").get_declared_field("sys_paths");
fp.accessible = true
fp.set(nil, nil)

require 'java'

java_import java.lang.ClassLoader
class ClassLoader
  field_accessor :sys_paths

jr -S ast --source --sexp -e 'puts "A"'
Source:
puts "A"

AST:

public class Test {
   public static void main(String[] args) {
      long n = 9147483648L;
      int x = (int) n;
      System.out.println(x);

jr -v
jruby 1.4.0dev (ruby 1.8.7 patchlevel 174) (2009-09-26 1add48e) (Java HotSpot(TM) 64-Bit Server VM 1.6.0_15) [x86_64-java]
enebo:12:15 ~/work/jruby_trunk 895% jr --1.9 -v
jruby 1.4.0dev (ruby 1.9.2dev trunk 24186) (2009-09-26 1add48e) (Java HotSpot(TM) 64-Bit Server VM 1.6.0_15) [x86_64-java]
enebo:12:15 ~/work/jruby_trunk 896% /usr/local/bin/ruby -v

enebo:17:56 ~/work/jruby_trunk 3134% ruby ~/jruby/scripts/str.rb 
/Users/enebo/jruby/scripts/str.rb:3: syntax error, unexpected $undefined, expecting $end
puts '\\\''
       ^
enebo:17:56 ~/work/jruby_trunk 3135% jr ~/jruby/scripts/str.rb 

    BASIC_TYPES = [:boolean, :byte, :short, :char, :int, :long, :float, :double]

    def java_return(mb, retval)
      type_name = retval.simple_name.to_sym

module Mix
  Foo = "foo"
end

class Child

class AbstractGame
  include RandomHelper

  field_accessor :display, :finished, :settings
end

  if java_import(com.google.appengine.api.images.Image) rescue false end
     require 'image_voodoo/gae'
  else
     require 'image_voodoo/awt'
  end

    @Override
    public IRubyObject interpret(Ruby runtime, ThreadContext context, IRubyObject self, Block aBlock) {
        IRubyObject value = caseNode == null ? null : caseNode.interpret(runtime, context, self, aBlock);

        context.pollThreadEvents();

Index: src/org/jruby/RubyThread.java
===================================================================
--- src/org/jruby/RubyThread.java        (revision 8191)
+++ src/org/jruby/RubyThread.java        (working copy)
@@ -87,6 +87,7 @@

require 'java'

class Base
  include java.util.Comparator
end

require 'java'

class Java::lang.Iterable
  def each(&block)
    iter = iterator