diff -r a6c85c21aa39 -r 24df796eef3d test/jdk/ProblemList.txt
--- a/test/jdk/ProblemList.txt	Sun Sep 15 13:23:21 2019 -0700
+++ b/test/jdk/ProblemList.txt	Sun Sep 15 21:00:15 2019 -0400
@@ -564,6 +564,8 @@
 javax/management/monitor/DerivedGaugeMonitorTest.java         8042211 generic-all
 javax/management/remote/mandatory/connection/MultiThreadDeadLockTest.java 8042215 generic-all
 
+java/lang/management/ThreadMXBean/LockedSynchronizers.java 8231032 generic-all
+
 ############################################################################
 
 # jdk_io