In message <el1oso$4ue$1 / online.de>, Gilbert Rebhan <mailforgilbert / gmx.de> writes >coming to Ruby from Java i'm lookin for a tool >similar to = > >http://cs.joensuu.fi/jeliot/index.php Er, not the same. But if a flow tracer will do (shows all calls, returns, lines, exceptions etc, plus all locals and all params) then take a look at Ruby Bug Validator. http://www.softwareverify.com/ruby/flow_tracer/index.html Stephen -- Stephen Kellett Object Media Limited http://www.objmedia.demon.co.uk/software.html Computer Consultancy, Software Development Windows C++, Java, Assembler, Performance Analysis, Troubleshooting