--- old/src/share/vm/memory/tenuredGeneration.cpp	2014-10-17 16:10:07.000000000 +0200
+++ new/src/share/vm/memory/tenuredGeneration.cpp	2014-10-17 16:10:07.000000000 +0200
@@ -36,10 +36,9 @@
 #include "utilities/macros.hpp"
 
 TenuredGeneration::TenuredGeneration(ReservedSpace rs,
-                                     size_t initial_byte_size, int level,
+                                     size_t initial_byte_size,
                                      GenRemSet* remset) :
-  OneContigSpaceCardGeneration(rs, initial_byte_size,
-                               level, remset, NULL)
+  OneContigSpaceCardGeneration(rs, initial_byte_size, remset, NULL)
 {
   HeapWord* bottom = (HeapWord*) _virtual_space.low();
   HeapWord* end    = (HeapWord*) _virtual_space.high();
@@ -171,11 +170,13 @@
          err_msg("used: " SIZE_FORMAT " used_after_gc: " SIZE_FORMAT
          " capacity: " SIZE_FORMAT, used(), used_after_gc, capacity()));
 }
-void TenuredGeneration::update_gc_stats(int current_level,
+
+void TenuredGeneration::update_gc_stats(Generation* current_generation,
                                         bool full) {
-  // If the next lower level(s) has been collected, gather any statistics
+  // If the young generation has been collected, gather any statistics
   // that are of interest at this point.
-  if (!full && (current_level + 1) == level()) {
+  bool current_is_young = (current_generation == GenCollectedHeap::heap()->young_gen());
+  if (!full && current_is_young) {
     // Calculate size of data promoted from the younger generations
     // before doing the collection.
     size_t used_before_gc = used();