Hi,
this PR is a first step into supporting JDK 16 (see #24402 ), which can be tested when setting the custom buildJavaHome property (at least build 16.ea.27 is needed to have Stream.toList() available). For everything else in #24402 we need Gradle with JDK 16 support.
Cheers, Christoph
Comment From: snicoll
Thanks @dreis2211. I've backported the fix for the test in 2.3.x and updated JavaVersion for 2.4.x onwards. While I'd like us to be able to build Spring Boot 2.3.x with Java 16, an official support of it is only available as of Spring Framework 5.3 so introducing the enum in that version sends the wrong message IMO.
Comment From: dreis2211
@snicoll Agree about the enum