Seen in developer testing only (so far), and only with this one test.

Current CompileTask:
C2: 95948 4127 4 java.lang.invoke.LambdaForm$MH/0x00000001001af400::invoke (71 bytes)

Stack: [0x00007f98cebfc000,0x00007f98cecfd000], sp=0x00007f98cecf8eb0, free space=1011k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x15b1811] Parse::do_method_entry()+0x431
V [libjvm.so+0x15baf14] Parse::Parse(JVMState*, ciMethod*, float)+0x9b4
V [libjvm.so+0x820ce0] ParseGenerator::generate(JVMState*)+0x110
V [libjvm.so+0xb50461] Parse::do_call()+0x371
V [libjvm.so+0x15c71e8] Parse::do_one_bytecode()+0x428
V [libjvm.so+0x15b53c8] Parse::do_one_block()+0x838
V [libjvm.so+0x15b62f0] Parse::do_all_blocks()+0x130
V [libjvm.so+0x15bb0f5] Parse::Parse(JVMState*, ciMethod*, float)+0xb95
V [libjvm.so+0x820ce0] ParseGenerator::generate(JVMState*)+0x110
V [libjvm.so+0xb50461] Parse::do_call()+0x371
V [libjvm.so+0x15c71e8] Parse::do_one_bytecode()+0x428
V [libjvm.so+0x15b53c8] Parse::do_one_block()+0x838
V [libjvm.so+0x15b62f0] Parse::do_all_blocks()+0x130
V [libjvm.so+0x15bb0f5] Parse::Parse(JVMState*, ciMethod*, float)+0xb95
V [libjvm.so+0x820ce0] ParseGenerator::generate(JVMState*)+0x110
V [libjvm.so+0xa02f62] Compile::Compile(ciEnv*, ciMethod*, int, bool, bool, bool, bool, bool, DirectiveSet*)+0x1342
V [libjvm.so+0x81dd36] C2Compiler::compile_method(ciEnv*, ciMethod*, int, bool, DirectiveSet*)+0x646
V [libjvm.so+0xa135f9] CompileBroker::invoke_compiler_on_method(CompileTask*)+0xd09
V [libjvm.so+0xa14298] CompileBroker::compiler_thread_loop()+0x518
V [libjvm.so+0x18896ec] JavaThread::thread_main_inner()+0x27c
V [libjvm.so+0x188fca0] Thread::call_run()+0x100
V [libjvm.so+0x156f5e4] thread_native_entry(Thread*)+0x104