Can Gen Liberty applications be built using Java JDK versions 17, 21 or 25

Products

• Gen

Issue/Introduction

Referencing the new Gen 8.6 support for the Liberty Application Server.
Per the page Gen™ 8.6 >Technical Requirements > Third-Party Software Version and section "Application Servers".
It states that Gen 8.6 support for Open Liberty and WebSphere Liberty includes Java JRE versions 8, 11, 17 and 21.
Does that also mean the Build Tool can use later Java JDK 17 or 21 to build/compile the Java application?

Environment

Gen Java applications targeting Liberty Application Server.

Resolution

Build Tool support for JDK versions 17, 21 and 25 was newly added in March 2026 with the release of Gen 8.6 Build Tool PTF BTN86407/LU19622 (supersedes BTN86406).

That is per the "Compilers" section of page Gen™ 8.6 >Technical Requirements > Third-Party Software Version which lists Open JDK versions 8, 11, 17, 21 and 25 and this statement:

Also per the "Application Servers" section of the same page, support for Open Liberty and WebSphere Liberty is now expanded to include Java JRE version 25.