JFXtras-labs 
A project for experimenting with new controls and other useful JavaFX extensions
Java version
JavaFX 2.2 - JDK 7
git checkout 2.2
JavaFX 8 - JDK 8
git checkout 8.0
Install/Build
Building with Gradle
Command ./gradlew build will install necessary gradle version
git clone https://github.com/JFXtras/jfxtras-labs.git
cd jfxtras-labs
git checkout *YOUR_JAVAFX_VERSION*
./gradlew build
Troubleshooting
set correct JAVA_HOME
example JAVA_HOME=/usr/lib/jvm/default-java/ in .bashrc
test file $JAVA_HOME/jre/lib/jfxrt.jar Unix
sometimes jre/lib/jfxrt.jar placed in jre/lib/ext/jfxrt.jar you can make symlink