src/hotspot/share/gc/g1/g1FullGCMarker.inline.hpp

@@ -163,11 +163,17 @@
      }
    } while (!is_empty());
  }
  
  inline void G1FullGCMarker::follow_klass(Klass* k) {
-   oop op = k->class_loader_data()->holder_no_keepalive();
+   ClassLoaderData* cld = k->class_loader_data();
+ #if 0 // IOITMP
+   if (cld == NULL) {
+     return;
+   }
+ #endif
+   oop op = cld->holder_no_keepalive();
    mark_and_push(&op);
  }
  
  inline void G1FullGCMarker::follow_cld(ClassLoaderData* cld) {
    _cld_closure.do_cld(cld);