The following issue has been observed when running
serviceability/jvmti/HeapMonitor/MyPackage/HeapMonitorThreadTest.jtr
on Linux with ubsan enabled binaries :

test/hotspot/jtreg/serviceability/jvmti/HeapMonitor/libHeapMonitorTest.cpp:518:9: runtime error: null pointer passed as argument 2, which is declared to never be null
    #0 0xffff80388020 in event_storage_augment_storage test/hotspot/jtreg/serviceability/jvmti/HeapMonitor/libHeapMonitorTest.cpp:518
    #1 0xffff80388020 in event_storage_add test/hotspot/jtreg/serviceability/jvmti/HeapMonitor/libHeapMonitorTest.cpp:557
    #2 0xffff85e695fc in JvmtiExport::post_sampled_object_alloc(JavaThread*, oopDesc*) src/hotspot/share/prims/jvmtiExport.cpp:2926
    #3 0xffff85e558b8 in JvmtiObjectAllocEventCollector::generate_call_for_allocated() src/hotspot/share/prims/jvmtiExport.cpp:3074
    #4 0xffff85e56c14 in JvmtiSampledObjectAllocEventCollector::~JvmtiSampledObjectAllocEventCollector() src/hotspot/share/prims/jvmtiExport.cpp:3171
    #5 0xffff85e56c14 in JvmtiSampledObjectAllocEventCollector::~JvmtiSampledObjectAllocEventCollector() src/hotspot/share/prims/jvmtiExport.cpp:3166
    #6 0xffff862ace34 in MemAllocator::Allocation::notify_allocation_jvmti_sampler() src/hotspot/share/gc/shared/memAllocator.cpp:196
    #7 0xffff862af7a4 in MemAllocator::Allocation::~Allocation() src/hotspot/share/gc/shared/memAllocator.cpp:87
    #8 0xffff862af7a4 in MemAllocator::allocate() const src/hotspot/share/gc/shared/memAllocator.cpp:356
    #9 0xffff86dca4dc in CollectedHeap::array_allocate(Klass*, unsigned long, int, bool, JavaThread*) src/hotspot/share/gc/shared/collectedHeap.inline.hpp:41
    #10 0xffff86dca4dc in TypeArrayKlass::allocate_common(int, bool, JavaThread*) src/hotspot/share/oops/typeArrayKlass.cpp:93
    #11 0xffff86dca4dc in TypeArrayKlass::allocate_common(int, bool, JavaThread*) src/hotspot/share/oops/typeArrayKlass.cpp:89
    #12 0xffff857f35c8 in InterpreterRuntime::newarray(JavaThread*, BasicType, int) src/hotspot/share/interpreter/interpreterRuntime.cpp:232
    #13 0xffff6b094cf4 (<unknown module>)