I downloaded the netbeans 12.2 slackbuild for netbeans 6.5.1 and adapted it for netbeans 6.7.1 (downloaded from netbeans.org) by changing some references from 6.5 to 6.7 and the resulting package built and then installed just fine. (There's no slackbuild for 13.0 in slackbuilds.org just now).

Netbeans appears to run fine too, but, whenever I try and compile java code inside it, it complains that I don't have the jdk setup correctly and can't find javac. I installed the jdk package from slackware 13's /extra and it all seems to be there in /usr/lib/java as I'd expect. I also played around with every relevant setting in netbeans I could think of, but to no avail.

Anyone else hit a problem like this?

EDIT: have installed 6.5.1 instead and it works fine.

Could it be a PATH issue? Try compiling from the command line and see if you get an error.

Definitely not PATH issue - javac works just fine on the command line.

Also, bizarrely, if I chose "Run" a particular java file with a main class then nb 6.7.1 would *compile* and then run it. I could verify it wasn't just picking up some old .class files by changing the source code and see the runtime out differ. Very odd.

Anyway, 6.5 will do just fine for now.