--- old/src/share/vm/gc_implementation/parallelScavenge/psOldGen.cpp	2015-04-15 12:34:20.257901116 +0200
+++ new/src/share/vm/gc_implementation/parallelScavenge/psOldGen.cpp	2015-04-15 12:34:20.081895199 +0200
@@ -414,17 +414,14 @@
 
 void PSOldGen::reset_after_change() {
   ShouldNotReachHere();
-  return;
 }
 
 size_t PSOldGen::available_for_expansion() {
   ShouldNotReachHere();
-  return 0;
 }
 
 size_t PSOldGen::available_for_contraction() {
   ShouldNotReachHere();
-  return 0;
 }
 
 void PSOldGen::print() const { print_on(tty);}