JRuby provides the extensions to Ruby that are required by JBehave to allow writing Steps classes directly in Ruby: method annotations and signatures.
The JRuby steps classes must provide method metadata specifying the java annotation and signature:The JRuby classes must be compiled into Java bytecode.
The jrubyc executable supports the --javac option to generate Java sources:
The jruby-complete artifact contains the jrubyc script in the META-INF/jruby.home/bin directory.
If using Maven, the jruby-maven-plugin can do the same task more cleanly: