$ jruby -S irb
irb(main):001:0> trap("INT") { puts "hi"}
=> #<#<Class:01x33b288>:0xe38c7 @java_object=java.lang.Terminator$1@5ad0f0>
irb(main):002:0> hi

$ find lib -name *.rb -print | xargs wc -l
      68 lib/warbler/config.rb
     188 lib/warbler/task.rb
       7 lib/warbler/version.rb
      12 lib/warbler.rb

## record.rb [ruby]

module Recording
  def self.stderr
    require 'stringio' unless defined? StringIO

module Recording
  def self.stderr
    require 'stringio' unless defined? StringIO
    $stderr = recorder = StringIO.new
    begin

class Model < ActiveRecord::Base

  validates_presense_of :immutable_after_create
  validate_on_update :cant_change_it

NativeException: java.lang.NullPointerException: null
    RubyString.java:744:in `org.jruby.RubyString.match3'
    null:-1:in `org.jruby.RubyStringDispatcher_for_String.callMethod'
    CallAdapter.java:152:in `org.jruby.runtime.CallAdapter$DefaultCallAdapter.call'
    CallAdapter.java:106:in `org.jruby.runtime.CallAdapter$DefaultCallAdapter.call'

Index: lib/active_record/connection_adapters/jdbc_adapter.rb
===================================================================
--- lib/active_record/connection_adapters/jdbc_adapter.rb        (revision 708)
+++ lib/active_record/connection_adapters/jdbc_adapter.rb        (working copy)
@@ -73,6 +73,7 @@

Index: src/java/JdbcAdapterInternalService.java
===================================================================
--- src/java/JdbcAdapterInternalService.java        (revision 707)
+++ src/java/JdbcAdapterInternalService.java        (working copy)
@@ -703,9 +703,15 @@

/Users/nicksieger/Projects/jruby/jruby-extras/activerecord-jdbc/lib/active_record/connection_adapters/jdbc_adapter.rb:353:in `configure_jdbc'
/Users/nicksieger/Projects/jruby/jruby-extras/activerecord-jdbc/lib/active_record/connection_adapters/jdbc_adapter.rb:248:in `initialize'
/Users/nicksieger/Projects/jruby/jruby-extras/activerecord-jdbc/lib/active_record/connection_adapters/jdbc_adapter.rb:41:in `new'
/Users/nicksieger/Projects/jruby/jruby-extras/activerecord-jdbc/lib/active_record/connection_adapters/jdbc_adapter.rb:41:in `jdbc_connection'

[INFO]  20) Error:
[INFO] test_nil_values(HsqldbSimpleTest):
[INFO] RuntimeError: The driver encountered an error: expected [java.sql.Driver]; got: [org.jruby.RubyModule]; error: java.lang.ClassCastException@480318
[INFO]     /Users/nicksieger/Projects/jruby/jruby-extras/activerecord-jdbc/lib/active_record/connection_adapters/jdbc_adapter.rb:253:in `initialize'
[INFO]     /Users/nicksieger/Projects/jruby/jruby-extras/activerecord-jdbc/lib/active_record/connection_adapters/jdbc_adapter.rb:41:in `new'

module FinderModule
  module ClassFinder
    def find(*args)
      puts "called FinderModule finder"
    end

## FinderModule [ruby]

module FinderModule
  def self.included(base)
    class << base

class MyModel < ActiveRecord::Base
  def my_type
    self['type']
  end
  def my_type=(ty)

$ patch -p0 -E -u < bytelistlexersource.patch 
patching file src/org/jruby/lexer/yacc/LexerSource.java
can't find file to patch at input line 518
Perhaps you used the wrong -p or --strip option?
The text leading up to this was:

def self.establish_connection(spec = nil)
      case spec
        when nil
          raise AdapterNotSpecified unless defined? RAILS_ENV
          establish_connection(RAILS_ENV)