import com.sun.tools.internal.xjc.generator.annotation.spec.XmlAnyAttributeWriter; //导入依赖的package包/类
/**
 * Generates an attribute wildcard property on a class.
 */
private void generateAttributeWildcard(ClassOutlineImpl cc) {
    String FIELD_NAME = "otherAttributes";
    String METHOD_SEED = model.getNameConverter().toClassName(FIELD_NAME);

    JClass mapType = codeModel.ref(Map.class).narrow(QName.class, String.class);
    JClass mapImpl = codeModel.ref(HashMap.class).narrow(QName.class, String.class);

    // [RESULT]
    // Map<QName,String> m = new HashMap<QName,String>();
    JFieldVar $ref = cc.implClass.field(JMod.PRIVATE,
            mapType, FIELD_NAME, JExpr._new(mapImpl));
    $ref.annotate2(XmlAnyAttributeWriter.class);

    MethodWriter writer = cc.createMethodWriter();

    JMethod $get = writer.declareMethod(mapType, "get" + METHOD_SEED);
    $get.javadoc().append(
            "Gets a map that contains attributes that aren't bound to any typed property on this class.\n\n"
            + "<p>\n"
            + "the map is keyed by the name of the attribute and \n"
            + "the value is the string value of the attribute.\n"
            + "\n"
            + "the map returned by this method is live, and you can add new attribute\n"
            + "by updating the map directly. Because of this design, there's no setter.\n");
    $get.javadoc().addReturn().append("always non-null");

    $get.body()._return($ref);
}