JRuby Console Debugger

The ruby-debug gem does not work in jruby directly, as it depends on native APIs.

http://wiki.jruby.org/wiki/Using_the_JRuby_Debugger

There is a Java-based JRuby implementation of the fast ruby debugger rdebug.

See: JRuby Fast Debugger

1. Manually download the ruby-debug-base-0.10.3-java.gem from debug-commons.

sudo jruby -S gem install ruby-debug-base-0.10.3-java.gem

2. Leave the directory and then do the following:

sudo jruby -S gem install –ignore-dependencies ruby-debug –version 0.10.3
sudo jruby -S gem install –ignore-dependencies ruby-debug-ide

3. Now install columnize

sudo jruby -S gem install columnize

~ by bandwagonblog on January 17, 2009.