The test runtime/cds/appcds/aotFlags/AOTFlags.java has run into the assertion "Possible safepoint reached by thread that does not allow it" on a Windows x64 machine. Date: 2025-08-20 (jdk head)

Stack: [0x000000948d500000,0x000000948d600000], sp=0x000000948d5ff290, free space=1020k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [jvm.dll+0x94f2e1] JavaThread::check_for_valid_safepoint_state+0xb1 (javaThread.cpp:398)
V [jvm.dll+0xdc15d6] Mutex::check_safepoint_state+0x66 (mutex.cpp:77)
V [jvm.dll+0xdc16ba] Mutex::lock+0x3a (mutex.cpp:120)
V [jvm.dll+0x11d85fb] MethodTrainingData::make+0x12b (trainingData.cpp:154)
V [jvm.dll+0x5d9ce5] CompilationPolicy::print_training_data_on+0x55 (compilationPolicy.cpp:429)
V [jvm.dll+0x5d9c04] CompilationPolicy::print_event_on+0x374 (compilationPolicy.cpp:540)
V [jvm.dll+0x5d980e] CompilationPolicy::print_event+0x6e (compilationPolicy.cpp:551)
V [jvm.dll+0x5da402] CompilationPolicy::select_task+0x1e2 (compilationPolicy.cpp:783)
V [jvm.dll+0x5f9841] CompileQueue::get+0x161 (compileBroker.cpp:450)
V [jvm.dll+0x5f8987] CompileBroker::compiler_thread_loop+0x187 (compileBroker.cpp:1944)
V [jvm.dll+0x956df6] JavaThread::thread_main_inner+0x296 (javaThread.cpp:776)
V [jvm.dll+0x11bd374] Thread::call_run+0x1b4 (thread.cpp:248)
V [jvm.dll+0xe36961] thread_native_entry+0xe1 (os_windows.cpp:562)
C [ucrtbase.dll+0x1fb80] (no source info available)
C [KERNEL32.DLL+0x84d4] (no source info available)
C [ntdll.dll+0x51a11] (no source info available)

VM Arguments:
-XX:AOTMode=record -XX:+PrintTieredEvents -XX:AOTConfiguration=hello.aotconfig