diff -r 0caa36de8703 -r 19c4a3eec4d7 src/hotspot/share/jvmci/jvmciCompilerToVM.cpp
--- a/src/hotspot/share/jvmci/jvmciCompilerToVM.cpp	Tue Oct 16 16:26:28 2018 -0400
+++ b/src/hotspot/share/jvmci/jvmciCompilerToVM.cpp	Wed Oct 31 14:38:14 2018 -0400
@@ -627,7 +627,6 @@
 C2V_VMENTRY(jboolean, hasFinalizableSubclass,(JNIEnv *, jobject, jobject jvmci_type))
   Klass* klass = CompilerToVM::asKlass(jvmci_type);
   assert(klass != NULL, "method must not be called for primitive types");
-  MutexLocker ml(Compile_lock);
   return Dependencies::find_finalizable_subclass(klass) != NULL;
 C2V_END