diff -r 5c0ec35d0533 -r 6b7240a24b56 src/hotspot/share/classfile/javaClasses.cpp
--- a/src/hotspot/share/classfile/javaClasses.cpp	Fri Jan 04 14:05:16 2019 +0100
+++ b/src/hotspot/share/classfile/javaClasses.cpp	Fri Jan 04 16:23:56 2019 +0100
@@ -1462,23 +1462,6 @@
 }
 
 
-bool java_lang_Class::is_primitive(oop java_class) {
-  // should assert:
-  //assert(java_lang_Class::is_instance(java_class), "must be a Class object");
-  bool is_primitive = (java_class->metadata_field(_klass_offset) == NULL);
-
-#ifdef ASSERT
-  if (is_primitive) {
-    Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset));
-    assert(k == NULL || is_java_primitive(ArrayKlass::cast(k)->element_type()),
-        "Should be either the T_VOID primitive or a java primitive");
-  }
-#endif
-
-  return is_primitive;
-}
-
-
 BasicType java_lang_Class::primitive_type(oop java_class) {
   assert(java_lang_Class::is_primitive(java_class), "just checking");
   Klass* ak = ((Klass*)java_class->metadata_field(_array_klass_offset));