we have two JDKs (versions 7 and 8 while the default is 7 as setup with update-java-alternatives under ubuntu) installed on TC Master and on the slaves. Ssome projects need to be build with JDK7 and others need to be build with JDK8. How can i setup which JDK to use for a project? Altough the default ist JDK7 the JDK8 is always used during the builds. Is there any kind of switch for projects (like the JDK option in Jenkins) or even branches (i work on a branch with changes for java8 while all other branches must still be build with java7) to tell the project wich JDK to use?