512以下是16的倍数 2的9次
以上每次*2 加到int越界 最大1073741824 = 1G
static final int DEFAULT_MINIMUM = 64;
static final int DEFAULT_INITIAL = 1024;
static final int DEFAULT_MAXIMUM = 65536;
private static final int INDEX_INCREMENT = 4;
private static final int INDEX_DECREMENT = 1;
private static final int[] SIZE_TABLE;
static {
List<Integer> sizeTable =