--- a/src/hotspot/share/prims/jvmtiRedefineClasses.cpp	Wed Jul 10 05:12:23 2019 +0100
+++ b/src/hotspot/share/prims/jvmtiRedefineClasses.cpp	Wed Jul 10 07:58:24 2019 -0400
@@ -232,9 +232,6 @@
     ResolvedMethodTable::adjust_method_entries(&trace_name_printed);
   }
 
-  // Disable any dependent concurrent compilations
-  SystemDictionary::notice_modification();
-
   // Set flag indicating that some invariants are no longer true.
   // See jvmtiExport.hpp for detailed explanation.
   JvmtiExport::set_has_redefined_a_class();