Next we need to install the latest available pre-built OpenJDK, in order to build the next major version. > sudo dd if=/dev/zero bs=1M count=1024 | pv | sudo dd of=/var/SWAPFILEĮdit the following lines in /etc/dphys-swapfile with VIM or a similar plain text editor: Next, we are going to create 1GB of swap space for the build. The first step is to boot into raspbian and launch the shell. It will just take some time, given the minimal power of the Pi 3's CPU. Luckilly, you can build and run the latest version (OpenJDK 12.x) on your device. This is because the armhf architecture is underserved by the Oracle open source community.
On my test-Pi I even keep different versions of LibericaJDK and switching is very easy with “update-alternatives”.Do you use your Raspberry Pi 3 to develop Java applications using OpenJDK? You may have noticed that the latest version available on the default apt repositories is OpenJDK 9. OpenJDK Server VM (build 13-BellSoft+33, mixed mode) OpenJDK Runtime Environment (build 13-BellSoft+33) When this is done, we can check the version again and it should look like this: $ java -version We only need the download link from their site to install an alternative Java JDK like this: $ cd /home/pi They have a version dedicated for the Raspberry Pi which includes JavaFX, so you will be able to run a JavaFX application with a simple “java -jar yourapp.jar” start command. Luckily we can use the LibericaJDK which is provided by BellSoft. This means we are already good to start any Java 11 based program! LibericaJDK to run JavaFX programsĪs JavaFX is no longer part of the Java JDK (since version 11), running a JavaFX program on Raspberry Pi will not work out-of-the-box. OpenJDK Server VM (build 11.0.3+7-post-Raspbian-5, mixed mode) OpenJDK Runtime Environment (build 11.0.3+7-post-Raspbian-5) So if we start with a fresh new Raspbian OS we indeed get this Java version result: $ java -version * Oracle Java 7 and 8 replaced with OpenJDK 11
In the release notes of Raspbian you can see that the version of includes OpenJDK Java 11: : In the Raspberry Pi specifications table on Wikipedia you get a clear overview of the Pi-types with this processor: One of the most read articles on this blog is about the installation of a recent Java on Raspberry Pi (March 13, 2019), so it’s time for an update!ĭisclaimer: this article is only valid for Raspberry Pi’s with an ARMv7 or ARMv8 processor.
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