diff -r d5fb27646df4 -r 2ae93028bef3 src/hotspot/share/oops/instanceKlass.cpp
--- a/src/hotspot/share/oops/instanceKlass.cpp	Fri Apr 05 09:18:18 2019 +0200
+++ b/src/hotspot/share/oops/instanceKlass.cpp	Wed Mar 27 14:13:34 2019 +0100
@@ -3104,7 +3104,7 @@
   for (int i = 0; i < len; i++) {
     intptr_t e = start[i];
     st->print("%d : " INTPTR_FORMAT, i, e);
-    if (e != 0 && ((Metadata*)e)->is_metaspace_object()) {
+    if (MetaspaceObj::is_valid((Metadata*)e)) {
       st->print(" ");
       ((Metadata*)e)->print_value_on(st);
     }