A thread was blocked at two objects multi times at the same time in Java Monitor Blocked event

[qsLI]

As the picture shows， http-nio-21066-exec-386 thread was blocked at monitor address 0x385C1B410 and 0x2E83DB5A8，and the start time and end time is almost same. And there are four events related to 0x2E83DB5A8, with same start and end time. Is that possible？

[apangin]

What was the version of JDK and the command for starting profiler?

[qsLI]

What was the version of JDK and the command for starting profiler?

version (internal patched version): JAVA_VERSION 11.0.1
command: start,event=cpu,alloc=1m,lock=10ms,interval=10ms,jfrsync=/tmp/k.jfc,jfr=7,file=/tmp/profile1666343400004.jfr
CentOS Linux release 7.2.1511 (Core)
uname:Linux 4.18.0-2.4.3.kwai.x86_64 #1 SMP Fri Apr 23 14:40:10 CST 2021 x86_64
libc:glibc 2.17 NPTL 2.17
java.vm.name OpenJDK 64-Bit Server VM

Using java api in-process profling，async profiler version 2.8

[apangin]

This does not look normal.
Is there a reliable way to reproduce the issue?

[qsLI]

Currently, no stable way to reproduce.
We use async profiler in jfrsync mode continuously monitor our app performance，the blocking happens occasionally.