The following test failed in the JDK13 CI:

jdk/jfr/api/recording/time/TestTimeMultiple.java

Here's a snippet from the log file:

#section:main
----------messages:(5/277)----------
command: main jdk.jfr.api.recording.time.TestTimeMultiple
reason: User specified action: run main/othervm jdk.jfr.api.recording.time.TestTimeMultiple
Mode: othervm [/othervm specified]
Additional options from @modules: --add-modules jdk.jfr
elapsed time (seconds): 11.81
----------configuration:(3/38)----------
Boot Layer
  add modules: jdk.jfr

----------System.out:(18/1055)*----------
# To suppress the following error report, specify this argument
# after -XX: or in .hotspotrc: SuppressErrorAt=t:/workspace/open/src/hotspot/share/jfr/recorder/storage/jfrBuffer.cpp:58
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (t:/workspace/open/src/hotspot/share/jfr/recorder/storage/jfrBuffer.cpp:58), pid=9396, tid=10776
# assert(!lease()) failed: invariant
#
# JRE version: Java(TM) SE Runtime Environment (13.0) (fastdebug build 13-ea+0-1429)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 13-ea+0-1429, mixed mode, sharing, tiered, compressed oops, g1 gc, windows-amd64)
# Core dump will be written. Default location: T:\\testoutput\\test-support\\jtreg_open_test_jdk_jdk_jfr\\scratch\\5\\hs_err_pid9396.mdmp
#
# An error report file with more information is saved as:
# T:\\testoutput\\test-support\\jtreg_open_test_jdk_jdk_jfr\\scratch\\5\\hs_err_pid9396.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#
----------System.err:(0/0)----------
----------rerun:(40/4860)*----------