Build on JDK11 by default

[karllessard]

As discussed and voted by SIG JVM, the minimal supported JDK version for distributed artifacts has moved from Java8 to Java11. Java17 build is also supported by the activation of the jdk17 Maven profile.

[Craigacp]

Should we add a module-info.java at the same time? I think it would be pretty short, just adding a dependency on jdk.unsupported for Unsafe.

[karllessard]

@Craigacp , so I've checked at the different options on how to support unit testing with Java modules in a classic Maven project setup and none are very appealing, so I suggest that we continue to simply disable the module path in the surefire plugin config like I currently do, and let unit tests use the regular classpath instead.

[Craigacp]

LGTM

[Craigacp]

@Craigacp , so I've checked at the different options on how to support unit testing with Java modules in a classic Maven project setup and none are very appealing, so I suggest that we continue to simply disable the module path in the surefire plugin config like I currently do, and let unit tests use the regular classpath instead.

Sure. Module testing is a pain and if it's going to cause a lot of problems we can leave it till later.