I've heard great things about JRuby and I know you can run it without knowing any Java. My development skills are strong, Java is just not one of the tools I know. It's a massive tool with a myriad of accompanying tools such as Maven/Ant/JUnit etc.
Is it worth moving my current Rails applications to JRuby for performance reasons alone? Perhaps if I pick up some basic Java along side, there can be so added benefits that aren't obvious such as better debugging/performance optimization tools?
Would love some advice on this one.