public static void main(String[] args) {
StopWatch w = new StopWatch(1);
w.begin(true);
for (int i = 0; i < 1000; ++i) {
Map<Integer, Boolean> map = Maps.newHashMap();
Stop s = w.start();
for (int j = 0; j < 10000; ++j) {
map.put(j, j % 2 == 0);
}
for (int j = 0; j < 10000; ++j) {
Check.isTrue(map.get(j).booleanValue() == (j % 2 == 0));