The following test timed out in the JDK18 CI:

java/foreign/TestResourceScope.java

Here's a snippet from the log file:

#section:testng
----------messages:(7/423)----------
command: testng TestResourceScope
reason: User specified action: run testng/othervm TestResourceScope
Mode: othervm [/othervm specified]
Additional options from @modules: --add-modules java.base,jdk.incubator.foreign --add-exports java.base/jdk.internal.ref=ALL-UNNAMED --add-exports jdk.incubator.foreign/jdk.incubator.foreign=ALL-UNNAMED
Timeout information:
--- Timeout information end.
elapsed time (seconds): 494.965
----------configuration:(5/214)----------
Boot Layer
  add modules: java.base jdk.incubator.foreign
  add exports: java.base/jdk.internal.ref ALL-UNNAMED
               jdk.incubator.foreign/jdk.incubator.foreign ALL-UNNAMED

----------System.out:(9/743)----------
test TestResourceScope.testCloseConfinedLock(): success
test TestResourceScope.testCloseEmptyConfinedScope(): success
test TestResourceScope.testCloseEmptySharedScope(): success
test TestResourceScope.testConfined(TestResourceScope$$Lambda$92/0x0000000800c35168@277f549): success
test TestResourceScope.testConfined(TestResourceScope$$Lambda$93/0x0000000800c35388@524bbb19): success
test TestResourceScope.testConfined(TestResourceScope$$Lambda$94/0x0000000800c355a8@3e475a21): success
test TestResourceScope.testLockSharedMultiThread(TestResourceScope$$Lambda$92/0x0000000800c35168@277f549): success
test TestResourceScope.testLockSharedMultiThread(TestResourceScope$$Lambda$93/0x0000000800c35388@524bbb19): success
Timeout refired 480 times
----------System.err:(1/56)----------
WARNING: Using incubator modules: jdk.incubator.foreign
----------rerun:(39/6017)*----------

<snip>

result: Error. Program `/opt/mach5/mesos/work_dir/jib-master/install/jdk-18+1-3/linux-aarch64.jdk/jdk-18/bin/java' timed out (timeout set to 480000ms, elapsed time including timeout handling was 494950ms).