You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: method_spec.rb
    path of file: ./repos/jruby/spec/jrubyc/java
    
    the code of the file until where you have to start completion: require_relative '../spec_helper'

describe "A Ruby class generating a Java stub" do
  def generate(script)
    node = JRuby.parse(script)
    # we use __FILE__ so there's something for it to read
    JRuby::Compiler::JavaGenerator.generate_java node, __FILE__
  end

  OBJECT_VOID_BAR_PATTERN =
    /public *(.*) *Object bar\(\) {\s+.*IRubyObject ruby_result = Helpers\.invoke\(.*, this, "bar"\);\s+return \(Object\)ruby_result\.toJava\(Object\.class\);/
  OBJECT_OBJECT_BAR_PATTERN =
    /public *(.*) *Object bar\(Object \w+\) {\s+IRubyObject \S+ = JavaUtil\.convertJavaToRuby\(__ruby__, \S+\);\s+IRubyObject ruby_result 
    
              def bar_str(a); end

              java_signature 'void bar(int)'
              def bar_int(a); end
            end").classes[0]

          cls.methods.length.should == 2
          vs_method = cls.methods[0]
          vs_method.name.should == "bar_str"
          vs_method.constructor?.should == false
          vs_method.java_signature.should_not == nil
          vs_method.java_signature.to_s.should == "void bar(String)"
          vs_method.args.length.should == 1
          vs_method.args[0].should == 'a'
          vs_method.to_s.should match VOID_STRING_BAR_PATTERN

          oo_method = cls.methods[1]
          oo_method.name.should == "bar_int"
          oo_method.constructor?.should == false
          oo_method.java_signature.should_not == nil
          oo_method.java_signature.to_s.should == "void bar(int)"
          oo_method.args.length.should == 1
          oo_method.args[0].should == 'a'
          oo_method.to_s.should match VOID_INT_BAR_PATTERN
        end
      end