java中ArrayList的初始大小是多少

Question

源代码ArrayList SDK 6

/**
 * Constructs an empty list with an initial capacity of ten.
 */
public ArrayList() {
    this(10);
}

ArrayList.java of SDK 8:

中的位置

/**
 * Constructs an empty list with an initial capacity of ten.
 */
public ArrayList() {
    this.elementData = DEFAULTCAPACITY_EMPTY_ELEMENTDATA;
}

DEFAULTCAPACITY_EMPTY_ELEMENTDATA

的位置

/**
 * Shared empty array instance used for default sized empty instances. We
 * distinguish this from EMPTY_ELEMENTDATA to know how much to inflate when
 * first element is added.
 */
private static final Object[] DEFAULTCAPACITY_EMPTY_ELEMENTDATA = {};

这意味着ArrayList默认大小现在为零，但评论说它仍然是10.

    /**
 * Constructs an empty list with an initial capacity of ten.
 */
public ArrayList() {
    this.elementData = DEFAULTCAPACITY_EMPTY_ELEMENTDATA;
}

请清楚混淆？