command: com.sun.jck.lib.multijvm.group.ExecCmd -timeout 600 -MTASK_ -groupSize 500 -testTimeout 6000 -MENV_ LD_LIBRARY_PATH=/opt/mach5/mesos/work_dir/jib-master/install/jck/22/b14/extra/bundles/JCK-extra-22.zip/JCK-extra-22/binaries/linux-aarch64/lib -MCMD_ /opt/mach5/mesos/work_dir/jib-master/install/jdk-23+5-221/linux-aarch64-debug.jdk/jdk-23/fastdebug/bin/java --enable-preview -Djava.awt.headless=true -Xcomp -ea -esa -XX:CompileThreshold=100 -XX:+UnlockExperimentalVMOptions -server -XX:-TieredCompilation -XX:MaxRAMPercentage=6.25 --show-version -XX:+EnableDynamicAgentLoading -XX:TieredStopAtLevel=1 -Xms32m -Xmx1024m -Djdk.attach.allowAttachSelf=true -Djava.security.properties=/opt/mach5/mesos/work_dir/jib-master/install/jck/22/b14/extra/bundles/JCK-extra-22.zip/JCK-extra-22/extra.security.properties -classpath /opt/mach5/mesos/work_dir/jib-master/install/jck/22/b14/bundles/JCK-runtime-22.jar/JCK-runtime-22/lib/javatest.jar:/opt/mach5/mesos/work_dir/jib-master/install/jck/22/b14/bundles/JCK-runtime-22.jar/JCK-runtime-22/lib/jtjck.jar: -Djava.security.policy=/opt/mach5/mesos/work_dir/jib-master/install/jck/22/b14/bundles/JCK-runtime-22.jar/JCK-runtime-22/lib/jck.policy -MTEST_ com.sun.jck.lib.ExecJCKTestSameJVMCmd -loadDir /opt/mach5/mesos/work_dir/jib-master/install/jck/22/b14/bundles/JCK-runtime-22.jar/JCK-runtime-22/classes: javasoft.sqe.tests.api.java.lang.ref.Reference.EnqueueTests
----------out1:(44/1262)----------
Reference2059: Passed. OKAY
Reference2058: Failed. first enqueue() returns false.

Note -Xcomp which can be the bain of Reference processing, it has been observed in the past couple of releases some eager GC removes references before they are effective in the test logic, requiring addition of reachability fencing.

This is a holding JBS issue to explore the repeatability of this failure.