--- old/src/share/vm/gc/g1/g1IHOPControl.cpp	2015-11-23 11:27:01.934404085 +0100
+++ new/src/share/vm/gc/g1/g1IHOPControl.cpp	2015-11-23 11:27:01.844401479 +0100
@@ -115,6 +115,7 @@
                                              size_t heap_waste_percent) :
   G1IHOPControl(ihop_percent, initial_target_occupancy),
   _predictor(predictor),
+  // A sigma of 0.95 favors more recent samples.
   _marking_times_s(10, 0.95),
   _allocation_rate_s(10, 0.95),
   _last_unrestrained_young_size(0),
@@ -145,10 +146,6 @@
          ((size_t)_allocation_rate_s.num() >= G1AdaptiveIHOPNumInitialSamples);
 }
 
-void G1AdaptiveIHOPControl::set_target_occupancy(size_t target_occupancy) {
-  _target_occupancy = target_occupancy;
-}
-
 size_t G1AdaptiveIHOPControl::get_conc_mark_start_threshold() {
   if (have_enough_data_for_prediction()) {
     double pred_marking_time = _predictor->get_new_prediction(&_marking_times_s);
--- old/src/share/vm/gc/g1/g1IHOPControl.hpp	2015-11-23 11:27:02.444418851 +0100
+++ new/src/share/vm/gc/g1/g1IHOPControl.hpp	2015-11-23 11:27:02.353416216 +0100
@@ -106,7 +106,7 @@
   size_t _heap_reserve_percent; // Percentage of maximum heap capacity we should avoid to touch
   size_t _heap_waste_percent;   // Percentage of free heap that should be considered as waste.
 
-  G1Predictions const * _predictor;
+  const G1Predictions * _predictor;
 
   TruncatedSeq _marking_times_s;
   TruncatedSeq _allocation_rate_s;
@@ -136,8 +136,6 @@
                         size_t heap_reserve_percent, // The percentage of total heap capacity that should not be tapped into.
                         size_t heap_waste_percent);  // The percentage of the free space in the heap that we think is not usable for allocation.
 
-  virtual void set_target_occupancy(size_t target_occupancy);
-
   virtual size_t get_conc_mark_start_threshold();
 
   virtual void update_allocation_info(double allocation_time_s, size_t allocated_bytes, size_t additional_buffer_size);