--- old/src/hotspot/share/classfile/systemDictionary.cpp	2018-08-23 19:20:43.731048978 -0400
+++ new/src/hotspot/share/classfile/systemDictionary.cpp	2018-08-23 19:20:42.362969860 -0400
@@ -1163,7 +1163,8 @@
   assert(length == _shared_dictionary_size * sizeof(HashtableBucket<mtClass>),
          "bad shared dictionary size.");
   _shared_dictionary = new Dictionary(ClassLoaderData::the_null_class_loader_data(),
-                                      _shared_dictionary_size, t, number_of_entries);
+                                      _shared_dictionary_size, t, number_of_entries,
+                                      false /* explicitly set _resizable to false */);
 }