vmTestbase/gc/gctests/LoadUnloadGC2/LoadUnloadGC2.java fails intermittently with exit code 1

Test cases : vmTestbase/gc/gctests/LoadUnloadGC2/LoadUnloadGC2.java
OS: linux x64 20.04
Where: 11u-cpu
Is it a regression: NO (intermittent failure)
jvm args : -server -XX:+UnlockExperimentalVMOptions -XX:+UseZGC -XX:+CreateCoredumpOnCrash

Failure Log :
----------System.out:(20/365)----------
Stress time: 60 seconds
Stress iterations factor: 1
Stress threads factor: 1
Stress runs factor: 1
Max memory: 1348468736
Sleep time: 500
Iterations: 0
Number of threads: 24
Seed: 1646270299850
Run GC thread: false
Run mem diag thread: false
Run forever: false
Iteration: 1
Iteration: 2
Iteration: 3
Iteration: 4
Iteration: 5
Iteration: 6
Iteration: 7
Iteration: 8
----------System.err:(4/200)----------

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "MainThread"

Exception: java.lang.OutOfMemoryError thrown from the UncaughtExceptionHandler in thread "main"