The following test failure was spotted in the JDK13 CI:

vmTestbase/nsk/jvmti/scenarios/contention/TC05/tc05t001/TestDescription.java

Here's a snippet of the log file:

#section:main
----------messages:(4/291)----------
command: main -agentlib:tc05t001=-waittime=5 nsk.jvmti.scenarios.contention.TC05.tc05t001
reason: User specified action: run main/othervm/native -agentlib:tc05t001=-waittime=5 nsk.jvmti.scenarios.contention.TC05.tc05t001
Mode: othervm [/othervm specified]
elapsed time (seconds): 1.038
----------configuration:(0/0)----------
----------System.out:(6/484)----------
The following fake exception stacktrace is for failure analysis.
nsk.share.Fake_Exception_for_RULE_Creation: (tc05t001.cpp:278) (waitedThreadCpuTime - waitThreadCpuTime) < (EXPECTED_ACCURACY * 1000000)
at nsk_lvcomplain(nsk_tools.cpp:172)
# ERROR: tc05t001.cpp, 278: (waitedThreadCpuTime - waitThreadCpuTime) < (EXPECTED_ACCURACY * 1000000)
# verified assertion is FALSE
waitedThreadCpuTime: 15625000, waitThreadCpuTime: 0, waitedThreadCpuTime - waitThreadCpuTime: 15625000
----------System.err:(0/0)----------
----------rerun:(37/5809)*----------