diff --git a/src/hotspot/share/gc/shenandoah/heuristics/shenandoahAdaptiveHeuristics.cpp b/src/hotspot/share/gc/shenandoah/heuristics/shenandoahAdaptiveHeuristics.cpp
index 9637d620ca3..7d8afea767a 100644
--- a/src/hotspot/share/gc/shenandoah/heuristics/shenandoahAdaptiveHeuristics.cpp
+++ b/src/hotspot/share/gc/shenandoah/heuristics/shenandoahAdaptiveHeuristics.cpp
@@ -842,7 +842,7 @@ ShenandoahAllocationRate::ShenandoahAllocationRate() :
 double ShenandoahAllocationRate::force_sample(size_t allocated, size_t &unaccounted_bytes_allocated) {
   const double MinSampleTime = 0.002;    // Do not sample if time since last update is less than 2 ms
   double now = os::elapsedTime();
-  double time_since_last_update = now -_last_sample_time;
+  double time_since_last_update = now - _last_sample_time;
   if (time_since_last_update < MinSampleTime) {
     unaccounted_bytes_allocated = allocated - _last_sample_value;
     _last_sample_value = 0;
diff --git a/src/hotspot/share/gc/shenandoah/heuristics/shenandoahAdaptiveHeuristics.hpp b/src/hotspot/share/gc/shenandoah/heuristics/shenandoahAdaptiveHeuristics.hpp
index a41da105c6f..634595dd460 100644
--- a/src/hotspot/share/gc/shenandoah/heuristics/shenandoahAdaptiveHeuristics.hpp
+++ b/src/hotspot/share/gc/shenandoah/heuristics/shenandoahAdaptiveHeuristics.hpp
@@ -70,13 +70,6 @@ class ShenandoahAllocationRate : public CHeapObj<mtGC> {
   // Otherwise, return false.  Significant divergence is recognized if (rate - _rate.avg()) / _rate.sd() > threshold.
   bool is_spiking(double rate, double threshold) const;
 
-  double interval() const {
-    return _interval_sec;
-  }
-  double last_sample_time() const {
-    return _last_sample_time;
-  }
-
  private:
 
   // Return the instantaneous rate calculated from (allocated - _last_sample_value) / (time - _last_sample_time).