The following test timed out in the JDK22 CI:

javax/management/MBeanServer/OldMBeanServerTest.java

Here's a snippet from the log file:

#section:main
----------messages:(9/369)----------
command: main -ea OldMBeanServerTest
reason: User specified action: run main/othervm -ea OldMBeanServerTest
started: Sat Dec 02 05:22:02 UTC 2023
Mode: othervm [/othervm specified]
Additional options from @modules: --add-modules java.management.rmi
Timeout information:
--- Timeout information end.
finished: Sat Dec 02 05:30:19 UTC 2023
elapsed time (seconds): 497.0
----------configuration:(3/47)----------
Boot Layer
  add modules: java.management.rmi

----------System.out:(598/25410)----------
=== RUNNING TESTS WITH LOCAL MBEANSERVER ===
testBasic OK
JMImplementation:type=MBeanServerDelegate:
  MBeanServerId = ol8-x64-770027_1701494522971
  SpecificationName = Java Management Extensions
  SpecificationVersion = 1.4
  SpecificationVendor = Oracle Corporation
  ImplementationName = JMX
  ImplementationVersion = 22-ea+27-2161
  ImplementationVendor = Oracle Corporation
testPrintAttrs OK

<snip>

com.sun.management:type=DiagnosticCommand:
java.lang:name=CodeHeap 'non-profiled nmethods',type=MemoryPool:
  Usage = javax.management.openmbean.CompositeDataSupport(compositeType=javax...
  PeakUsage = javax.management.openmbean.CompositeDataSupport(compositeType=j...
  MemoryManagerNames = [Ljava.lang.String;@53b70aba
  UsageThreshold = 0
  UsageThresholdExceeded = false
  UsageThresholdCount = 0
  UsageThresholdSupported = true
  CollectionUsageThreshold = <java.lang.UnsupportedOperationException: Collec...
  CollectionUsageThresholdExceeded = <java.lang.UnsupportedOperationException...
  CollectionUsageThresholdCount = <java.lang.UnsupportedOperationException: C...
  CollectionUsage = null
  CollectionUsageThresholdSupported = false
  Name = CodeHeap 'non-profiled nmethods'
  Type = NON_HEAP
  Valid = true
  ObjectName = java.lang:type=MemoryPool,name=CodeHeap 'non-profiled nmethods'
com.sun.management:type=HotSpotDiagnostic:
  DiagnosticOptions = [Ljavax.management.openmbean.CompositeData;@4f7a1689
  ObjectName = com.sun.management:type=HotSpotDiagnostic
jdk.management.jfr:type=FlightRecorder:
  Recordings = [Ljavax.management.openmbean.CompositeData;@15499447
  Configurations = [Ljavax.management.openmbean.CompositeData;@7a9705b4
  EventTypes = [Ljavax.management.openmbean.CompositeData;@111e2286
  ObjectName = jdk.management.jfr:type=FlightRecorder
testPlatformMBeanServer OK
testJavaxManagementStandardMBean OK
testConnector OK
TEST PASSED
----------System.err:(1/15)----------
STATUS:Passed.
----------rerun:(43/6708)*----------

<snip>

result: Error. Program `/opt/mach5/mesos/work_dir/jib-master/install/jdk-22+27-2161/linux-x64-debug.jdk/jdk-22/fastdebug/bin/java' timed out (timeout set to 480000ms, elapsed time including timeout handling was 496993ms).


Please note that the test PASSed while the timeout handler was running.