+ - sulfur:
+ branch: "master"
+ java-version: "openjdk11"
+ - phosphorus:
+ branch: "stable/phosphorus"
+ java-version: "openjdk11"
+ - silicon:
+ branch: "stable/silicon"
+ java-version: "openjdk11"
+ - aluminium:
+ branch: "stable/aluminium"
+ java-version: "openjdk11"