That was not an obvious one. Under KUbuntu I typically use the KPackageKit application to install and update applications. It did not work well. I tried to install the sun-java-jdk package many times and every time it would list the dependencies and do the install but the “java -version” would tell me that I was still using the OpenJDK.
After reading a few different posts in forums I tested the idea to use the synaptic package manager. The installation worked much better.
To finalize the install I ran a few commands at the cli:
sudo update-java-alternatives -l
This listed the fact that I now have the OpenJDK and Sun Java installed on my workstation.
sudo update-alternatives –config java
This allowed me to specify to use the Sun Java as my default JVM.
This now reports the Sun Java JRE as my JVM.
I can now use Maven to compile some test projects.
I guess there are still a few issues with the OpenJDK to be fully compatible (might just be some configuration that I am not aware of).