具有最终未初始化字段的抽象类

我将字段定为final，并强制构造函数将值向上传递：

public abstract class Test {  private final ArrayList<Object> objects;  protected ArrayList<Object> getObjects() {    return objects;  }  protected Test(ArrayList<Object> objects) {    this.objects = objects;  }}public class TestSubA extends Test {  public TestSubA() {    super(new ArrayList<Object>(20));    // Other stuff  }}public class TestSubB extends Test {  public TestSubB() {    super(new ArrayList<Object>(100));    // Other stuff  }}