--- old/src/hotspot/share/prims/jvmtiExport.hpp	2018-10-21 22:34:19.164950842 -0700
+++ new/src/hotspot/share/prims/jvmtiExport.hpp	2018-10-21 22:34:18.648931154 -0700
@@ -328,6 +328,7 @@
     JVMTI_ONLY(return _should_post_class_file_load_hook);
     NOT_JVMTI(return false;)
   }
+  static bool early_class_hook_env();
   // Return true if the class was modified by the hook.
   static bool post_class_file_load_hook(Symbol* h_name, Handle class_loader,
                                         Handle h_protection_domain,