package utils; import java.util.Objects; /** * A wrapper for integers; meant for testing custom objects in generic type parameters. */ public class IntWrapper { public final int val; public IntWrapper(int val) { this.val = val; } @Override public boolean equals(Object o) { if (this == o) { return true; } if (o == null || getClass() != o.getClass()) { return false; } IntWrapper that = (IntWrapper) o; return val == that.val; } @Override public int hashCode() { return Objects.hash(val); } @Override public String toString() { return "IntWrapper{" + "id=" + val + '}'; } }