The installation instructions recommend JDK 5.0 Update 14. (http://wiki.forum.nokia.com/index.ph..._tools_for_S60)
Why is this? What's wrong with the most recent version? (jdk1.6.0_04)
things are designed and tested on one version of the JDK and that is the version recommended. It may be that the newer version will work just fine and it may not. You can try it if you want.
A problem that happens even if there is backwards compatibility is that the older tools check to see if there is a minimum version and Sun changes the numbering so newer versions fail the test. However I don't know as I've never tried this newer version. Maybe someone with more expertise can comment.
If now then let us know if you do and if it works.