Use bitCount

1 files changed, 1 insertions, 10 deletions

diff --git a/node-repository/src/main/java/com/yahoo/vespa/hosted/provision/maintenance/SpareCapacityMaintainer.java b/node-repository/src/main/java/com/yahoo/vespa/hosted/provision/maintenance/SpareCapacityMaintainer.java
index e436d3b926a..a7c1517deb5 100644
--- a/node-repository/src/main/java/com/yahoo/vespa/hosted/provision/maintenance/SpareCapacityMaintainer.java
+++ b/node-repository/src/main/java/com/yahoo/vespa/hosted/provision/maintenance/SpareCapacityMaintainer.java
@@ -307,7 +307,7 @@ public class SpareCapacityMaintainer extends NodeRepositoryMaintainer {
 
             // find next
             while (++i < 1<<nodes.size()) {
-                int ones = onesIn(i);
+                int ones = Integer.bitCount(i);
                 if (ones > maxLength) continue;
 
                 next = new ArrayList<>(ones);
@@ -332,15 +332,6 @@ public class SpareCapacityMaintainer extends NodeRepositoryMaintainer {
             return (number & (1 << position)) > 0;
         }
 
-        private int onesIn(int number) {
-            int ones = 0;
-            for (int position = 0; Math.pow(2, position) <= number; position++) {
-                if (hasOneAtPosition(position, number))
-                    ones++;
-            }
-            return ones;
-        }
-
     }
 
 }