diff -r 5ea48e85ca90 -r ae2cfffe2e64 hotspot/src/share/vm/oops/instanceKlass.cpp
--- a/hotspot/src/share/vm/oops/instanceKlass.cpp	Wed Jul 26 11:27:51 2017 +0200
+++ b/hotspot/src/share/vm/oops/instanceKlass.cpp	Wed Jul 26 10:41:07 2017 -0400
@@ -2949,7 +2949,7 @@
     st->print(BULLET"fake entry for mirror: ");
     mirrored_klass->print_value_on_maybe_null(st);
     st->cr();
-    Klass* array_klass = java_lang_Class::array_klass(obj);
+    Klass* array_klass = java_lang_Class::array_klass_acquire(obj);
     st->print(BULLET"fake entry for array: ");
     array_klass->print_value_on_maybe_null(st);
     st->cr();