--- old/src/hotspot/share/adlc/arena.hpp	2018-03-12 10:02:04.156763861 -0400
+++ new/src/hotspot/share/adlc/arena.hpp	2018-03-12 10:02:03.469700547 -0400
@@ -25,17 +25,12 @@
 #ifndef SHARE_VM_ADLC_ARENA_HPP
 #define SHARE_VM_ADLC_ARENA_HPP
 
-// All classes in the virtual machine must be subclassed
+// All classes in adlc may be subclassed
 // by one of the following allocation classes:
 //
-//
 // For objects allocated in the C-heap (managed by: free & malloc).
 // - CHeapObj
 //
-//
-// For embedded objects.
-// - ValueObj
-//
 // For classes used as name spaces.
 // - AllStatic
 //
@@ -48,15 +43,6 @@
 };
 
 
-// Base class for objects used as value objects.
-// Calling new or delete will result in fatal error.
-
-class ValueObj {
- public:
-  void* operator new(size_t size) throw();
-  void operator delete(void* p);
-};
-
 // Base class for classes that constitute name spaces.
 
 class AllStatic {