Twitter::Autolink breaks in jruby when text contains Chinese or Japanese

test.rb

# encoding: utf-8
require 'twitter-text'

options = { :username_include_symbol => true }

text = "@baozi hi you are a dog #dog"
text_cn = "@baozi 嗨你是一条狗诶 #狗狗"
text_jp = "@baozi ねえ、あなたは犬だ #犬"

puts "=== original ==="
puts text
puts text_cn
puts text_jp

puts "=== autolinked ==="
puts Twitter::Autolink.auto_link(text, options)
puts Twitter::Autolink.auto_link(text_cn, options)
puts Twitter::Autolink.auto_link(text_jp, options)