Here you can find the source of vectorSizeToBucketNum(int vectorSize)
public static int vectorSizeToBucketNum(int vectorSize)
//package com.java2s; //License from project: Apache License public class Main { public static int vectorSizeToBucketNum(int vectorSize) { return ((vectorSize - 1) >>> 4) + 1; }/*from www .j a v a2 s.c om*/ }