--- a/src/hotspot/share/classfile/classLoaderExt.cpp	Wed Sep 11 22:09:05 2019 -0400
+++ b/src/hotspot/share/classfile/classLoaderExt.cpp	Wed Sep 11 18:31:25 2019 -0700
@@ -55,7 +55,7 @@
 void ClassLoaderExt::append_boot_classpath(ClassPathEntry* new_entry) {
   if (UseSharedSpaces) {
     warning("Sharing is only supported for boot loader classes because bootstrap classpath has been appended");
-    FileMapInfo::current_info()->header()->set_has_platform_or_app_classes(false);
+    FileMapInfo::current_info()->set_has_platform_or_app_classes(false);
   }
   ClassLoader::add_to_boot_append_entries(new_entry);
 }