diff -r 9ace9865028c -r 37ebfe8bac7f src/hotspot/share/memory/metaspace.hpp
--- a/src/hotspot/share/memory/metaspace.hpp	Wed May 30 07:42:48 2018 -0700
+++ b/src/hotspot/share/memory/metaspace.hpp	Wed May 30 17:30:06 2018 +0200
@@ -389,7 +389,9 @@
     // Print details about the underlying virtual spaces.
     rf_show_vslist                  = (1 << 3),
     // Print metaspace map.
-    rf_show_vsmap                   = (1 << 4)
+    rf_show_vsmap                   = (1 << 4),
+    // If show_loaders: show loaded classes for each loader.
+    rf_show_classes                 = (1 << 5)
   };
 
   // This will print out a basic metaspace usage report but