@Ignore @Test public void testBuilderPerformanceWithDefaultValues(){
  int count=1000000;
  long startTimeNanos=System.nanoTime();
  for (int ii=0; ii < count; ii++) {
    Person.newBuilder().setName("James Gosling").setYearOfBirth(1955).setState("CA").build();
  }
  long durationNanos=System.nanoTime() - startTimeNanos;
  double durationMillis=durationNanos / 1e6d;
  System.out.println("Built " + count + " records in "+ durationMillis+ "ms ("+ (count / (durationMillis / 1000d))+ " records/sec, "+ (durationMillis / count)+ "ms/record");
}