--- a/hotspot/src/share/vm/prims/jniCheck.cpp	Wed Jul 05 11:03:19 2017 -0700
+++ b/hotspot/src/share/vm/prims/jniCheck.cpp	Thu Jul 06 01:50:26 2017 +0200
@@ -505,7 +505,7 @@
 
   Klass* k = java_lang_Class::as_Klass(mirror);
   // Make allowances for primitive classes ...
-  if (!(k != NULL || allow_primitive && java_lang_Class::is_primitive(mirror))) {
+  if (!(k != NULL || (allow_primitive && java_lang_Class::is_primitive(mirror)))) {
     ReportJNIFatalError(thr, fatal_class_not_a_class);
   }
   return k;