Typo gem cannot be installed with JRuby

Installing Typo gem using JRuby gives:

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JRuby limited openssl loaded. gem install jruby-openssl for full
Building native extensions. This could take a while…
/Users/arungupta/tools/rails20/jruby-1.1.3/lib/ruby/1.8/mkmf.rb:7: JRuby
does not support native extensions. Check wiki.jruby.org for
alternatives. (NotImplementedError)
from extconf.rb:1
ERROR: Error installing typo:
ERROR: Failed to build gem native extension.

/Users/arungupta/tools/rails20/jruby-1.1.3/bin/jruby extconf.rb install

Gem files will remain installed in
for inspection.
Results logged to
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Any plans to port the native extension so that Typo can be run on JRuby