import com.sun.tools.doclint.Messages; //导入依赖的package包/类
void run() {
    check(HtmlTag.A, HtmlTag.valueOf("A"), HtmlTag.values());
    check(HtmlTag.Attr.ABBR, HtmlTag.Attr.valueOf("ABBR"), HtmlTag.Attr.values());
    check(HtmlTag.AttrKind.INVALID, HtmlTag.AttrKind.valueOf("INVALID"), HtmlTag.AttrKind.values());
    check(HtmlTag.BlockType.BLOCK, HtmlTag.BlockType.valueOf("BLOCK"), HtmlTag.BlockType.values());
    check(HtmlTag.EndKind.NONE, HtmlTag.EndKind.valueOf("NONE"), HtmlTag.EndKind.values());
    check(HtmlTag.Flag.EXPECT_CONTENT, HtmlTag.Flag.valueOf("EXPECT_CONTENT"), HtmlTag.Flag.values());

    check(Checker.Flag.TABLE_HAS_CAPTION, Checker.Flag.valueOf("TABLE_HAS_CAPTION"), Checker.Flag.values());

    check(Entity.nbsp, Entity.valueOf("nbsp"), Entity.values());

    check(Messages.Group.ACCESSIBILITY, Messages.Group.valueOf("ACCESSIBILITY"), Messages.Group.values());
}