--- a/hotspot/src/share/vm/gc/serial/defNewGeneration.cpp	Wed Apr 12 13:05:59 2017 +0200
+++ b/hotspot/src/share/vm/gc/serial/defNewGeneration.cpp	Wed Apr 12 17:53:18 2017 +0200
@@ -273,9 +273,9 @@
   char *to_end     = to_start   + survivor_size;
 
   assert(to_end == _virtual_space.high(), "just checking");
-  assert(Space::is_aligned((HeapWord*)eden_start), "checking alignment");
-  assert(Space::is_aligned((HeapWord*)from_start), "checking alignment");
-  assert(Space::is_aligned((HeapWord*)to_start),   "checking alignment");
+  assert(Space::is_aligned(eden_start), "checking alignment");
+  assert(Space::is_aligned(from_start), "checking alignment");
+  assert(Space::is_aligned(to_start),   "checking alignment");
 
   MemRegion edenMR((HeapWord*)eden_start, (HeapWord*)from_start);
   MemRegion fromMR((HeapWord*)from_start, (HeapWord*)to_start);