--- a/src/hotspot/share/code/nmethod.hpp	Fri Nov 30 20:15:25 2018 +0900
+++ b/src/hotspot/share/code/nmethod.hpp	Fri Nov 30 11:40:48 2018 +0100
@@ -257,6 +257,14 @@
 #endif
   );
 
+  // Only used for unit tests.
+  nmethod()
+    : CompiledMethod(),
+      _is_unloading_state(0),
+      _native_receiver_sp_offset(in_ByteSize(-1)),
+      _native_basic_lock_sp_offset(in_ByteSize(-1)) {}
+
+
   static nmethod* new_native_nmethod(const methodHandle& method,
                                      int compile_id,
                                      CodeBuffer *code_buffer,