gistfile1.java

    @Override
    public Variant invoke(final String methodName, final Variant[] variantArgs) {
        new Thread() {
            @Override
            public void run() {
                ThreadContext context = runtime.getCurrentContext();

                int length = variantArgs.length;
                IRubyObject[] args = new IRubyObject[length];
                for (int i = 0; i < length; i++) {
                    args[i] = RubyWIN32OLE.fromVariant(runtime, variantArgs[i]);
                }

                target.callMethod(context, methodName, args);
            }
        }.start();

        return null;
    }