--- old/src/hotspot/share/prims/whitebox.cpp	2018-02-07 10:49:24.693087874 +0100
+++ new/src/hotspot/share/prims/whitebox.cpp	2018-02-07 10:49:24.235073936 +0100
@@ -528,7 +528,7 @@
     size_t total_memory() { return _total_memory; }
     size_t total_memory_to_free() { return _total_memory_to_free; }
 
-  bool doHeapRegion(HeapRegion* r) {
+  bool do_heap_region(HeapRegion* r) {
     if (r->is_old()) {
       size_t prev_live = r->marked_bytes();
       size_t live = r->live_bytes();