--- old/src/hotspot/share/runtime/fieldType.hpp	2018-02-15 15:33:56.000000000 -0500
+++ new/src/hotspot/share/runtime/fieldType.hpp	2018-02-15 15:33:56.000000000 -0500
@@ -69,14 +69,6 @@
              (signature->byte_at(sig_length - 1) == ';'));
   }
 
-  static bool is_valuetype(Symbol* signature) {
-    int sig_length = signature->utf8_length();
-    // Must start with 'Q' and end with ';'
-    return (sig_length >= 2 &&
-        (signature->byte_at(0) == 'Q') &&
-        (signature->byte_at(sig_length - 1) == ';'));
-  }
-
   // MVT name mangling, VM derived value type naming Foo->Foo$Value
   static bool is_dvt_postfix(Symbol* signature);
   static char* dvt_unmangle_vcc(Symbol* signature);