--- old/src/hotspot/share/gc/z/zRootsIterator.hpp	2018-08-01 11:19:10.000000000 -0500
+++ new/src/hotspot/share/gc/z/zRootsIterator.hpp	2018-08-01 11:19:10.000000000 -0500
@@ -130,14 +130,12 @@
   void do_jni_weak_handles(BoolObjectClosure* is_alive, OopClosure* cl);
   void do_jvmti_weak_export(BoolObjectClosure* is_alive, OopClosure* cl);
   void do_jfr_weak(BoolObjectClosure* is_alive, OopClosure* cl);
-  void do_symbol_table(BoolObjectClosure* is_alive, OopClosure* cl);
   void do_string_table(BoolObjectClosure* is_alive, OopClosure* cl);
 
   ZSerialWeakOopsDo<ZWeakRootsIterator, &ZWeakRootsIterator::do_jvmti_weak_export>  _jvmti_weak_export;
   ZSerialWeakOopsDo<ZWeakRootsIterator, &ZWeakRootsIterator::do_jfr_weak>           _jfr_weak;
   ZParallelWeakOopsDo<ZWeakRootsIterator, &ZWeakRootsIterator::do_vm_weak_handles>  _vm_weak_handles;
   ZParallelWeakOopsDo<ZWeakRootsIterator, &ZWeakRootsIterator::do_jni_weak_handles> _jni_weak_handles;
-  ZParallelWeakOopsDo<ZWeakRootsIterator, &ZWeakRootsIterator::do_symbol_table>     _symbol_table;
   ZParallelWeakOopsDo<ZWeakRootsIterator, &ZWeakRootsIterator::do_string_table>     _string_table;
 
 public: