How to use JFX/OpenFX with OpenJDK 8

Is there any javafx/OpenJFX dependency which can be used directly in the pom file so that it works with OpenJDK 8?

AFAIK, no. There are org.openjfx artifacts for OpenJFX 11 onwards, but they won't work with Java 8. (The class file version will be wrong.)

Or any workaround (without installing anything) which works with OpenJDK 8?

I think you will need to build your own copy of OpenJFX from source, and (touch wood) "package it" with your application¹.

^{(The following is purely based on reading the OpenJFX build instructions. I have not tried this out.)}

So if you want to build a stand-alone OpenJFX 8 for use with OpenJDK 8, then you should try the following build instructions on the OpenJFX wiki:

• Building OpenJFX 8u

The result of the build is (apparently) a ZIP file that is designed to be "overlayed" onto a JRE installation.

You may be able to repackage that into JARs and native libraries that you can include in your application.

For OpenJFX 9 and later, the build instructions are here:

• Building OpenJFX

Apparently, for N >= 9, OpenJFX version N is supposed to be supported for OpenJDK N and OpenJDK N - 1. So if that is accurate, you should be able to build OpenJFX 9 for OpenJDK 8. On the other hand, the build instructions talk about generating modules, and module support is only available in Java 9 and later. However it is still worth a try (IMO).

^{1 - Options include 1) creating a custom Debian package(s) (or RPMs) ... analogous to the existing Ubuntu packages, 2) incorporating the relevant classes and native libraries into your application JAR, or 3) adding them to your applications classpath and library load path. You may need to experiment.}