title: How can I build Jenkins Projects with a custom JDK?
body: <p>I have a regular Jenkins instance running with some multibranch pipelines. The instance runs on JDK 11, as higher versions are not really supported with Jenkins. That's alright.</p>
  <p>What is not alright though, is that all my pipelines also seem to be capped to Java 11 by that. Jenkins just runs all the builds with the JDK it uses itself too. That is not alright, though.</p>
  <p>At this point, any solution would do, but ideally I would just like to have <strong>two</strong> seperate JDKs: JDK 11, for Jenkins itself and another JDK it automatically runs all builds on.</p>
  <p>Is there any way to achieve this? Thanks in advance - Emil</p>