--- old/src/share/vm/gc_implementation/parallelScavenge/parMarkBitMap.cpp	2014-05-26 11:04:26.278545118 +0200
+++ new/src/share/vm/gc_implementation/parallelScavenge/parMarkBitMap.cpp	2014-05-26 11:04:26.191542600 +0200
@@ -71,7 +71,7 @@
   if (_virtual_space != NULL && _virtual_space->expand_by(_reserved_byte_size)) {
     _region_start = covered_region.start();
     _region_size = covered_region.word_size();
-    idx_t* map = (idx_t*)_virtual_space->reserved_low_addr();
+    BitMap::bm_word_t* map = (BitMap::bm_word_t*)_virtual_space->reserved_low_addr();
     _beg_bits.set_map(map);
     _beg_bits.set_size(bits / 2);
     _end_bits.set_map(map + words / 2);