DropGoat is an intentionally vulnerable Java web application written using DropWizard framework that I use to teach application security and evaluate security scanners.

You need a basic Java development environment with JDK and Maven. At this moment only JDK 8 will work.

Buld the application:

mvn package

And run the output JAR package:

java -jar target/DropGoat-1.0.jar server config.yml

Then head to https://localhost:8888/app/assets/index.html to see its main page with links to specific exploits.