Simple Syntax checking for Ruby in Redcar?

ruby_syntax_checker.rb

require 'java'

module Java::IO
  import 'java.io.File'
  import 'java.io.FileInputStream'
end

module JRuby
  import 'org.jruby.Ruby'
end

class RubySyntaxChecker
  # Why this *args here? Well, this forces a ManyVarsDynamicScope for the Parser
  def check(path, *args)
    begin
      runtime = JRuby::Ruby.global_runtime
      io = Java::IO::FileInputStream.new(Java::IO::File.new(path))
      runtime.parse_from_main(io, File.basename(path))
    rescue SyntaxError => e
      e.exception.message
    end
  end
end