Changing default JDK inside Netbeans

Inside the IDE we have the menu Tools –> Java Platforms. Here we can assign more JDK locations. But we can’t assign a default JDK. There is no interface button for this.

The way to assign a default JDK is to go to the Netbeans install location {root}/netbeans/etc and edit the file netbeans.conf.

# (see http://wiki.netbeans.org/wiki/view/FaqGCPauses)

# Default location of JDK, can be overridden by using –jdkhome :
netbeans_jdkhome=”D:jdk1.6.0_10″

# Additional module clusters, using ${path.separator} (‘;’ on Windows or ‘:’ on Unix):
#netbeans_extraclusters=”/absolute/path/to/cluster1:/absolute/path/to/cluster2″
netbeans_default_userdir=d:/JavaCAPS62/.netbeans/caps
#netbeans_jdkhome=D:/jdk1.6.0_20

I’ve commented out the first bold line and filled the reference to the new default location, and commented the old default location. Restarting Netbeans will run the new settings.