jdk8u aarch32 builds not finding jdk8 arm boot jdk

[andrew-m-leonard]

https://ci.adoptium.net/job/build-scripts/job/jobs/job/jdk8u/job/jdk8u-linux-arm-temurin/499/

21:15:19  configure: Potential Boot JDK found at /usr/lib/jvm/jdk8 did not contain an rt.jar; ignoring
21:15:19  configure: error: The path given by --with-boot-jdk does not contain a valid Boot JDK

further up the log we have:

21:13:25  BOOT JDK: openjdk version "25-beta" 2025-09-16
21:13:25  BOOT JDK: OpenJDK Runtime Environment (build 25-beta+36-202511252229)
21:13:25  BOOT JDK: OpenJDK Server VM (build 25-beta+36-202511252229, mixed mode, sharing)
21:13:25  Boot jdk directory: /usr/lib/jvm/jdk8

jdk-25 in a jdk8 folder !