The default java on my system is 1.5, but I've also got 1.6 installed.
The maven project I was building required the use of the 1.6 JDK. The path to
my JDK 1.6 can be entered on the hudson 'configure system' screen, but it isn't
possible to choose this JDK in the project config (and if you don't specify a
JDK here the default system JDK gets used). I eventually discovered that the
option to choose JDK only appears if two or more JDKs are entered in 'configure
It should be possible to override the default JDK without having to specify more
than one JDK.