Ubuntu – How to install openjfx along with openjdk-11

openjdk

I am trying to use openjdk-11 on ubuntu, but my project requires javafx.

There is an openjfx package but it installs alognside with openjdk-8.

So far I only found instructions to build both openjdk and openjfx from scratch.

Any easier way?

Edit: openjdk-11 comes without javafx/openjfx by default.

Best Answer

I figured it out:

You have to download the latest build from the openjfx web site an run as described here: http://mail.openjdk.java.net/pipermail/openjfx-dev/2018-May/021819.html

It seems to have gtk3 enabled by default wich did not seem as stable as gtk2. So for now I have decided to stick with oracle 10 jdk and wait for openjfx to mature and have maven packages.

Related Solutions

Ubuntu – How to install a specific version of OpenJDK? (1.8.0_131)

I have found mirror hosting debian packages for OpenJDK (1.8.0_131).

You can download following debian packages for your required version 1.8.0_131.

openjdk-8-dbg_8u131-b11-2ubuntu1.16.04.3_amd64.deb 
openjdk-8-demo_8u131-b11-2ubuntu1.16.04.3_amd64.deb
openjdk-8-jdk-headless_8u131-b11-2ubuntu1.16.04.3_amd64.deb
openjdk-8-jdk_8u131-b11-2ubuntu1.16.04.3_amd64.deb
openjdk-8-jre-headless_8u131-b11-2ubuntu1.16.04.3_amd64.deb
openjdk-8-jre-jamvm_8u131-b11-2ubuntu1.16.04.3_amd64.deb
openjdk-8-jre_8u131-b11-2ubuntu1.16.04.3_amd64.deb
openjdk-8-source_8u131-b11-2ubuntu1.16.04.3_all.

Above packages are for Ubuntu 16.04 LTS. You can copy to any other system and install manually using sudo dpkg -i command.

You can also download following tar file for manually installing openjdk using same link.

openjdk-8_8u131-b11-2ubuntu1.16.04.3.debian.tar.xz          
openjdk-8_8u131-b11.orig.tar.xz

JavaFX – Set JAVAFX_HOME Path on Ubuntu

Ok so sbt had errors since the build file had references to the system environemnt [system.getenv("JAVA_HOME")) in java and in sbt it was scala.sys.env("JAVA_HOME") and similarly to JAVAFX_HOME]

It is common to use JAVA_HOME system variable so this is added in linux by adding the location of java installation to the /etc/environment file. Mine was JAVA_HOME="/usr/lib/jvm/java-8-openjdk-amd64". Remember to not use CLASSPATH in the environment file since it hinder the running of java files.

/etc/environment:

...
JAVA_HOME="/usr/lib/jvm/java-8-openjdk-amd64"
JAVAFX_HOME="/usr/share/java/openjfx"

Remember to reboot after setting new environment variables.

Also note that update-alternatives should be done both to java and javac. And the

java --version

does not work since in java 8 it is just

java -version

Also in sbt you can use this line to to add

 unmanagedJars in Compile += Attributed.blank(
   file(System.getenv("JAVA_HOME") + "/jre/lib/jfxrt.jar"))

to set current jfxrt (javaFX) file wherever that is (modify accordingly)

Best Answer

Related Solutions

Ubuntu – How to install a specific version of OpenJDK? (1.8.0_131)

JavaFX – Set JAVAFX_HOME Path on Ubuntu

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