--- old/src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp	2014-07-15 10:22:42.538300204 +0200
+++ new/src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp	2014-07-15 10:22:42.459297886 +0200
@@ -695,6 +695,9 @@
   clear_fcc();
 }
 
+bool OtherRegionsTable::is_empty() const {
+  return occ_sparse() == 0 && occ_coarse() == 0 && _first_all_fine_prts == NULL;
+}
 
 size_t OtherRegionsTable::occupied() const {
   size_t sum = occ_fine();