Ubuntu 18.04 javafx.utils not there

Question

I am trying to 'build' Floodlight. I've stumbled upon compilation issue that is fairly self-explanatory, ie:

> compile:
>     [javac] Compiling 593 source files to /mnt/sda1/floodlight/floodlight/target/bin
>     [javac] warning: [options] bootstrap class path not set in conjunction with -source 8
>     [javac] /mnt/sda1/floodlight/floodlight/src/main/java/net/floodlightcontroller/loadbalancer/LoadBalancer.java:57:
> error: package javafx.util does not exist
>     [javac] import javafx.util.Pair;
>     [javac]                   ^
>     [javac] /mnt/sda1/floodlight/floodlight/src/main/java/net/floodlightcontroller/statistics/IStatisticsService.java:10:
> error: package javafx.util does not exist
>     [javac] import javafx.util.Pair;
>     [javac]                   ^
>     [javac] /mnt/sda1/floodlight/floodlight/src/main/java/net/floodlightcontroller/loadbalancer/LoadBalancer.java:138:
> error: cannot find symbol
>     [javac]     protected HashMap<Pair<Match,DatapathId>,String> flowToVipId;
>     [javac]                       ^
>     [javac]   symbol:   class Pair
>     [javac]   location: class LoadBalancer
>     [javac] /mnt/sda1/floodlight/floodlight/src/main/java/net/floodlightcontroller/statistics/IStatisticsService.java:25:
> error: cannot find symbol

[and so on]

I've of course tried adding javafx via apt like this:

root@hp-linux: apt install openjfx

root@hp-linux:/mnt/sda1/floodlight/floodlight# dpkg-query -L openjfx
/.
/usr
/usr/share
/usr/share/doc
/usr/share/doc/openjfx
/usr/share/doc/openjfx/TODO.Debian
/usr/share/doc/openjfx/changelog.Debian.gz
/usr/share/doc/openjfx/copyright
/usr/share/openjfx
/usr/share/openjfx/lib
/usr/share/openjfx/lib/javafx.properties
/usr/share/openjfx/lib/javafx.base.jar
/usr/share/openjfx/lib/javafx.controls.jar
/usr/share/openjfx/lib/javafx.fxml.jar
/usr/share/openjfx/lib/javafx.graphics.jar
/usr/share/openjfx/lib/javafx.media.jar
/usr/share/openjfx/lib/javafx.swing.jar
/usr/share/openjfx/lib/javafx.web.jar

It seems like indeed, javafx.utils is not there. How do I fix that? I've tried pretty much everything I've been able to find in the Internet, but to no avail.

Answer 1

As openjfx is no longer supported upstream, Ubuntu 18.04 decided not to support openjfx 8 anymore and replaced it with openjfx 11. If you are an SDN-man you should know that Floodlight supports Java 8 and so the problem will be found here. I shared a post right now that I wish could help you. How to install Floodlight controller on Ubuntu 18.04 LTS alongside with Openjfx