--- old/src/hotspot/share/ci/ciField.hpp	2019-03-06 21:28:07.454550599 -0800
+++ new/src/hotspot/share/ci/ciField.hpp	2019-03-06 21:28:07.206541886 -0800
@@ -202,6 +202,12 @@
              klass_name == ciSymbol::java_lang_Long_LongCache()));
   }
 
+  bool is_never_null() const {
+    // Cannot use (type()->basic_type() == T_VALUETYPE) -- if the class is not loaded,
+    // type() is an unloaded ciInstanceKlass!
+    return signature()->char_at(0) == 'Q';
+  }
+
   // Debugging output
   void print();
   void print_name_on(outputStream* st);