Runtime Environment

1. Oracle Java 11.0.1

Development Environment

1. sbt-1.2.7

2. The JavaFX SDK for the platform

   1. Set the environment variable JAVAFX_LIB, for example

       $ export JAVAFX_LIB=~/Downloads/javafx-sdk-11.0.1/lib
      

Frequently Used Commands

1. Run from sbt

    sbt:openjfx-sbt> run
   

2. Build the fat jar, and run it

    $ sbt assembly
    $ java --module-path $JAVAFX_LIB --add-modules=javafx.controls -jar target/scala-2.12/openjfx-sbt-assembly-0.0.11.jar
   

   1. The fat jar does not work with JavaFX 11

3. Package the modules

    $ rm -rf target/gui; jlink --output target/gui --module-path target/scala-2.12/openjfx-sbt-assembly-0.0.11.jar:$JAVAFX_LIB --add-modules=gui --launcher command=gui/gui.HelloWorld
   

   1. Avoid "Graphics Device initialization failed for : es2, sw" when running target/gui/bin/command

       $ cp $JAVAFX_LIB/*.dylib target/gui/lib
      

Futher Readings

1. javapackager
   1. https://medium.com/@adam_carroll/java-packager-with-jdk11-31b3d620f4a8