--- a/src/hotspot/share/classfile/stringTable.cpp	Tue Nov 13 23:33:17 2018 -0500
+++ b/src/hotspot/share/classfile/stringTable.cpp	Wed Nov 14 07:50:37 2018 +0100
@@ -847,7 +847,7 @@
   assert(HeapShared::is_heap_object_archiving_allowed(), "must be");
 
   CopyToArchive copy(writer);
-  StringTable::the_table()->_local_table->do_scan(Thread::current(), copy);
+  StringTable::the_table()->_local_table->do_safepoint_scan(copy);
 }
 
 void StringTable::write_to_archive() {