When trying to configure the notifier for SKARA-1574, I got the following exception:

Caused by: java.util.NoSuchElementException: No value present
at java.base/java.util.Optional.orElseThrow(Optional.java:377)
at org.openjdk.skara.bots.notify/org.openjdk.skara.bots.notify.issue.IssueNotifier.onNewCommits(IssueNotifier.java:290)
at org.openjdk.skara.bots.notify/org.openjdk.skara.bots.notify.RepositoryWorkItem.handleUpdatedRef(RepositoryWorkItem.java:111)
at org.openjdk.skara.bots.notify/org.openjdk.skara.bots.notify.RepositoryWorkItem.handleRef(RepositoryWorkItem.java:155)
at org.openjdk.skara.bots.notify/org.openjdk.skara.bots.notify.RepositoryWorkItem.run(RepositoryWorkItem.java:372)

This indicates that JdkVersion.parse is not able to handle the fixversion declared in the shenandoah-jdk8u repo: "shenandoah8u332"

Since these are now accepted fixVersions in JBS, we need to support them in Skara.