diff a/src/hotspot/os_cpu/windows_x86/os_windows_x86.hpp b/src/hotspot/os_cpu/windows_x86/os_windows_x86.hpp
--- a/src/hotspot/os_cpu/windows_x86/os_windows_x86.hpp
+++ b/src/hotspot/os_cpu/windows_x86/os_windows_x86.hpp
@@ -60,12 +60,10 @@
   static void setup_fpu();
   static bool supports_sse() { return true; }
 
   static jlong rdtsc();
 
-  static bool      register_code_area(char *low, char *high);
-
 #ifdef AMD64
 #define PLATFORM_PRINT_NATIVE_STACK 1
 static bool platform_print_native_stack(outputStream* st, const void* context,
                                         char *buf, int buf_size);
 #endif