Site Sponsors:
Downgrading Java on Ubuntu 16.x 
Just a quick note to let everyone know that - after installing LTS 16.04 (so far a very pleasant & stable release - recommended!) that I discovered that the default JDK ("9 internal") does not work.

java -version
openjdk version "9-internal"

--The failures are so bad, that the kernel actually dumps core!

(Forgive the imp, yet note the bug -Halloween is around the corner!)

Sadly, removing the "9 internal" by conventional means results in only a partial removal... very nasty. What will work however, is to remove everything via a hand-grenade:

sudo apt remove --purge "^openjdk.*"

Followed by a dependency purge:
sudo apt-get autoremove

Then re-install a version that actually works:
sudo apt-get install openjdk-8-jre

Ultimately, once we have what we need installed, don't forget to associate that new JRE by right-clicking on a .jar file, so as to:

In addition to those old 'ol reliable versions of Oracle (I like to test under many JVM's), here is the OpenJDK that worked for me on LTS 16.04.1:
openjdk version "1.8.0_91"
OpenJDK Runtime Environment (build 1.8.0_91-8u91-b14-3ubuntu1~16.04.1-b14)
OpenJDK 64-Bit Server VM (build 25.91-b14, mixed mode)

Sharing is caring!



Add Comment
Comments are not available for this entry.