Hi all,John discovered that our instructions on the Debian (and therefore Ubuntu) install was not following the de-facto standards. In short the location of where you install the JDK has been altered for more flexibility and security. The post has now been updated with the corrected details.I also recently discovered that the Netbeans 7.0 Beta 2 won’t always start with JDK1.6.0_24 and the -J-XX:MaxPermGen parameter. If this happens to you then you can remove the -J-XX:MaxPermGen from the %Netbeans_Home%/etc/netbeans.conf file. Hope the Java 7 explorations are going well! We’ll be posting more code samples to run with shortly as well as a later piece on project Jigsaw (which is more Java 8, but hey!)Cheers, Martijn PS: If you are interested in the book, the 50% promo code runs out on the 3rd of March, so get in fast! Java