EXCEPTION_ACCESS_VIOLATION failure for compiler/graalunit/ReplacementsTest.java in DependencyContext::dependencies_not_unloading

#failure in JDK 15 CI testing -

-- compiler/graalunit/ReplacementsTest.java

   Run test open/test/hotspot/jtreg/:hotspot_compiler with windows-x64-debug
   with -XX:-UseCompressedOops #tier7-rt-main-no-coops Id jdk-15+9-223

    Crash: EXCEPTION_ACCESS_VIOLATION
    Crash: V ...[jvm.dll+...] DependencyContext::dependencies_not_unloading+...

-- hs_err log -
.......
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007ffa5062c357, pid=38548, tid=38336
#
# JRE version: Java(TM) SE Runtime Environment (15.0+9) (fastdebug build 15-ea+9-223)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 15-ea+9-223, mixed mode, tiered, jvmci, g1 gc, windows-amd64)
# Problematic frame:
# V [jvm.dll+0x43c357] DependencyContext::dependencies_not_unloading+0x27
............
--------------- T H R E A D ---------------
Current thread (0x000000786f0ea800): JavaThread "main" [_thread_in_vm, id=38336, stack(0x000000786e760000,0x000000786e860000)]
Stack: [0x000000786e760000,0x000000786e860000], sp=0x000000786e85b010, free space=1004k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [jvm.dll+0x43c357] DependencyContext::dependencies_not_unloading+0x27 (dependencycontext.cpp:286)
V [jvm.dll+0x43c5af] DependencyContext::mark_dependent_nmethods+0x1f (dependencycontext.cpp:68)
V [jvm.dll+0x5c5991] InstanceKlass::mark_dependent_nmethods+0x61 (instanceklass.cpp:2185)
V [jvm.dll+0x3beef3] CodeCache::flush_dependents_on+0x153 (codecache.cpp:1200)
V [jvm.dll+0xb434e7] SystemDictionary::define_instance_class+0x2e7 (systemdictionary.cpp:1589)
V [jvm.dll+0xb4559c] SystemDictionary::find_or_define_instance_class+0x2fc (systemdictionary.cpp:1683)
V [jvm.dll+0xb4882c] SystemDictionary::resolve_from_stream+0x2bc (systemdictionary.cpp:1128)
V [jvm.dll+0x6b6ba2] jvm_define_class_common+0x252 (jvm.cpp:974)
V [jvm.dll+0x6c09c3] JVM_DefineClassWithSource+0x203 (jvm.cpp:998)
............