--- a/hotspot/src/share/vm/classfile/modules.hpp	Mon Apr 24 08:47:38 2017 -0400
+++ b/hotspot/src/share/vm/classfile/modules.hpp	Mon Apr 24 12:08:28 2017 -0400
@@ -50,7 +50,7 @@
   // * num_packages is negative
   // * num_packages is non-zero when packages is null
   //  NullPointerExceptions are thrown if module is null.
-  static void define_module(jobject module, jstring version,
+  static void define_module(jobject module, jboolean is_open, jstring version,
                             jstring location, const char* const* packages,
                             jsize num_packages, TRAPS);