--- old/src/hotspot/share/utilities/hashtable.cpp	2018-11-16 19:19:38.832334285 -0800
+++ new/src/hotspot/share/utilities/hashtable.cpp	2018-11-16 19:19:38.568324237 -0800
@@ -65,6 +65,7 @@
       len = 1 << log2_intptr(len); // round down to power of 2
       assert(len >= _entry_size, "");
       _first_free_entry = NEW_C_HEAP_ARRAY2(char, len, F, CURRENT_PC);
+      _entry_blocks->append(_first_free_entry);
       _end_block = _first_free_entry + len;
     }
     entry = (BasicHashtableEntry<F>*)_first_free_entry;