This means that all core bootstrap classes are loaded by the bootstrap loader , which makes sure that the correct versions of classes such as 这意味著所有核心引导类别都是由引导载入器载入的,这就保证载入了类别例如
Because these are trusted system classes , the bootstrap loader skips much of the validation that gets done for normal untrusted classes 因为这些是可信的系统类,所以引导程序装入器跳过了对常规(不可信)类所做的大量验证。
Each class loader also keeps a reference to a parent class loader , defining a tree of class loaders with the bootstrap loader at the root 每个类装入器还保留对父类装入器的引用,这样就定义了类装入器树,树根为引导程序装入器。