TCP and UDP inputs fail to function

OS is Ubuntu 12.04.02
Java version "1.6.0_27"
OpenJDK Runtime Environment (IcedTea6 1.12.6) (6b27-1.12.6-1ubuntu0.12.04.2)
OpenJDK Client VM (build 20.0-b12, mixed mode, sharing)

Input section:

input {
stdin {
type => "stdin-type"
}
tcp {
port => 3333
}
}

After start:
Exception in thread "LogStash::Runner" org.jruby.exceptions.RaiseException: (LoadError) no such file to load – base64
at org.jruby.RubyKernel.require(org/jruby/RubyKernel.java:1082)
at Kernel.require(jar:file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/META-INF/jruby.home/lib/ruby/shared/rubygems/core_ext/kernel_require.rb:53)
at Kernel.require(jar:file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/META-INF/jruby.home/lib/ruby/shared/rubygems/core_ext/kernel_require.rb:51)
at Kernel.require(file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/logstash/JRUBY-6970.rb:22)
at Kernel.require(file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/polyglot.rb:63)
at RUBY.(root)(file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/ftw/request.rb:9)
at org.jruby.RubyKernel.require(org/jruby/RubyKernel.java:1082)
at Kernel.require(jar:file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/META-INF/jruby.home/lib/ruby/shared/rubygems/core_ext/kernel_require.rb:53)
at Kernel.require(jar:file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/META-INF/jruby.home/lib/ruby/shared/rubygems/core_ext/kernel_require.rb:51)
at Kernel.require(file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/logstash/JRUBY-6970.rb:22)
at RUBY.(root)(file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/polyglot.rb:1)
at RUBY.require(file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/polyglot.rb:63)
at org.jruby.RubyKernel.require(org/jruby/RubyKernel.java:1082)
at Kernel.require(jar:file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/META-INF/jruby.home/lib/ruby/shared/rubygems/core_ext/kernel_require.rb:53)
at Kernel.require(jar:file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/META-INF/jruby.home/lib/ruby/shared/rubygems/core_ext/kernel_require.rb:51)
at Kernel.require(file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/logstash/JRUBY-6970.rb:22)
at RUBY.(root)(file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/ftw/agent.rb:2)
at RUBY.(root)(file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/polyglot.rb:1)
at org.jruby.RubyKernel.require(org/jruby/RubyKernel.java:1082)
at Kernel.require(jar:file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/META-INF/jruby.home/lib/ruby/shared/rubygems/core_ext/kernel_require.rb:53)
at Kernel.require(jar:file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/META-INF/jruby.home/lib/ruby/shared/rubygems/core_ext/kernel_require.rb:51)
at Kernel.require(file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/logstash/JRUBY-6970.rb:22)
at RUBY.require(file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/polyglot.rb:63)
at RUBY.(root)(file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/ftw.rb:1)
at org.jruby.RubyKernel.require(org/jruby/RubyKernel.java:1082)
at Kernel.require(jar:file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/META-INF/jruby.home/lib/ruby/shared/rubygems/core_ext/kernel_require.rb:53)
at Kernel.require(jar:file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/META-INF/jruby.home/lib/ruby/shared/rubygems/core_ext/kernel_require.rb:51)
at Kernel.require(file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/logstash/JRUBY-6970.rb:22)
at RUBY.(root)(file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/polyglot.rb:1)
at org.jruby.RubyKernel.require(org/jruby/RubyKernel.java:1082)
at Kernel.require(jar:file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/META-INF/jruby.home/lib/ruby/shared/rubygems/core_ext/kernel_require.rb:53)
at Kernel.require(jar:file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/META-INF/jruby.home/lib/ruby/shared/rubygems/core_ext/kernel_require.rb:51)
at Kernel.require(file:/home/jlay/logstash/logstash-1.2.2-flatjar.jar!/logstash/JRUBY-6970.rb:22)
at logstash.runner.run(logstash/runner.rb:105)
at org.jruby.RubyProc.call(org/jruby/RubyProc.java:271)
at logstash.runner.run(logstash/runner.rb:200)
at logstash.runner.main(logstash/runner.rb:74)
at logstash.runner.(root)(logstash/runner.rb:230)

Changing to UDP gives me:
---------------------------------------------------------

---------------------------------------------------------
The error reported is:
superclass mismatch for class Error