$ cd test/hotspot/jtreg/testlibrary/ctw
$ make
$ cd dist
$ wget https://repo1.maven.org/maven2/org/vraptor/vraptor/2.6.2/vraptor-2.6.2.jar
$ JAVA_OPTIONS="-XX:+UseShenandoahGC" ./ctw.sh vraptor-2.6.2.jar

# Internal Error (/home/shade/trunks/jdk/src/hotspot/share/gc/shenandoah/c2/shenandoahSupport.cpp:2479), pid=604910, tid=604921
# assert(mems <= 1) failed: No node right after call if multiple mem projections
#
# JRE version: OpenJDK Runtime Environment (17.0) (fastdebug build 17-internal+0-adhoc.shade.jdk)
# Java VM: OpenJDK 64-Bit Server VM (fastdebug 17-internal+0-adhoc.shade.jdk, mixed mode, sharing, tiered, compressed oops, compressed class ptrs, shenandoah gc, linux-amd64)
# Problematic frame:
# V [libjvm.so+0x184795b] MemoryGraphFixer::find_mem(Node*, Node*) const+0x8bb

Current CompileTask:
C2: 1979 1696 !b 4 org.vraptor.introspector.ExpressionEvaluator::invokeGetter (151 bytes)

Stack: [0x00007f5d4c47b000,0x00007f5d4c57c000], sp=0x00007f5d4c575dc0, free space=1003k
Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x184795b] MemoryGraphFixer::find_mem(Node*, Node*) const+0x8bb
V [libjvm.so+0x184e092] MemoryGraphFixer::fix_mem(Node*, Node*, Node*, Node*, Node*, Unique_Node_List&)+0xb12
V [libjvm.so+0x18514f0] ShenandoahBarrierC2Support::pin_and_expand(PhaseIdealLoop*)+0x2390
V [libjvm.so+0x17440b4] ShenandoahBarrierSetC2::optimize_loops(PhaseIdealLoop*, LoopOptsMode, VectorSet&, Node_Stack&, Node_List&) const+0x44
V [libjvm.so+0x12f6584] PhaseIdealLoop::build_and_optimize(LoopOptsMode)+0x11c4
V [libjvm.so+0xa4decf] PhaseIdealLoop::optimize(PhaseIterGVN&, LoopOptsMode)+0x32f
V [libjvm.so+0x18455d0] ShenandoahBarrierC2Support::expand(Compile*, PhaseIterGVN&)+0x70
V [libjvm.so+0x1743f83] ShenandoahBarrierSetC2::expand_barriers(Compile*, PhaseIterGVN&) const+0x13
V [libjvm.so+0xa4b4b5] Compile::Optimize()+0x1055
V [libjvm.so+0xa4d066] Compile::Compile(ciEnv*, ciMethod*, int, bool, bool, bool, bool, DirectiveSet*)+0x1936
V [libjvm.so+0x8809be] C2Compiler::compile_method(ciEnv*, ciMethod*, int, bool, DirectiveSet*)+0x1ee
V [libjvm.so+0xa5e6c9] CompileBroker::invoke_compiler_on_method(CompileTask*)+0xf39
V [libjvm.so+0xa5f3b8] CompileBroker::compiler_thread_loop()+0x5b8
V [libjvm.so+0x19c7341] JavaThread::thread_main_inner()+0x281
V [libjvm.so+0x19cf3b4] Thread::call_run()+0x104
V [libjvm.so+0x1569ece] thread_native_entry(Thread*)+0x11e