HacodeTest.java

@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@Fork(1)
@State(Scope.Thread)
@Warmup(iterations = 5, time = 1)
@Measurement(iterations = 10, time = 1)
public class Hashcode {

    UserObjects userObjects;
    UserIDEDefault userIDEDefault;
    UserApacheCommons3 userApacheCommons3;
    UserGuava userGuava;
    UserLombok userLombok;

    @Setup
    public void setup() {
        userObjects = new UserObjects("Dmytro", 35);
        userIDEDefault = new UserIDEDefault("Dmytro", 35);
        userApacheCommons3 = new UserApacheCommons3("Dmytro", 35);
        userGuava = new UserGuava("Dmytro", 35);
        userLombok = new UserLombok("Dmytro", 35);
    }

    @Benchmark
    public int objectsHashcode() {
        return userObjects.hashCode();
    }

    @Benchmark
    public int defaultHashCode() {
        return userIDEDefault.hashCode();
    }

    @Benchmark
    public int apacheCommons() {
        return userApacheCommons3.hashCode();
    }

    @Benchmark
    public int guava() {
        return userGuava.hashCode();
    }

    @Benchmark
    public int lombok() {
        return userLombok.hashCode();
    }
}