--- old/src/hotspot/share/runtime/os_perf.hpp	2019-12-01 18:05:01.694554406 -0500
+++ new/src/hotspot/share/runtime/os_perf.hpp	2019-12-01 18:05:01.454541546 -0500
@@ -190,9 +190,8 @@
   uint64_t _bytes_out;
   NetworkInterface* _next;
 
-  NetworkInterface(); // no impl
-  NetworkInterface(const NetworkInterface& rhs); // no impl
-  NetworkInterface& operator=(const NetworkInterface& rhs); // no impl
+  NONCOPYABLE(NetworkInterface);
+
  public:
   NetworkInterface(const char* name, uint64_t bytes_in, uint64_t bytes_out, NetworkInterface* next) :
   _name(NULL),
@@ -268,8 +267,8 @@
  private:
   class NetworkPerformance;
   NetworkPerformance* _impl;
-  NetworkPerformanceInterface(const NetworkPerformanceInterface& rhs); // no impl
-  NetworkPerformanceInterface& operator=(const NetworkPerformanceInterface& rhs); // no impl
+  NONCOPYABLE(NetworkPerformanceInterface);
+
  public:
   NetworkPerformanceInterface();
   bool initialize();