JDK 11 on the Raspberry Pi

This is a very short post on what I ended up doing to get an OpenJDK 11 build for Raspbian on my Raspberry Pi 3.

1. Get the latest JDK 11 build of the Liberica JVM (Debian package for ARM v7 & v8, provided by Bell Soft)
   The java download page is here https://www.bell-sw.com/java.html.
   
   For example:
   

   wget https://github.com/bell-sw/Liberica/releases/download/11.0.2/bellsoft-jdk11.0.2-linux-arm32-vfp-hflt.deb

2. Install it
   
   For example:
   

   sudo apt-get install ./bellsoft-jdk11.0.2-linux-arm32-vfp-hflt.deb

3. Set the defaults (if you want to)
   

   sudo update-alternatives --config javac
   sudo update-alternatives --config java
   

Done!

Note that this gives you access to an open version of JDK Flight Recorder on your Raspberry Pi. Woho! 😉

You could, for example, use the flight recorder to record sensor information.

Another alternative would be using the Azul Zulu JVM, which also has a working Flight Recorder implementation in their JDK 11 arm32 builds.