在V 5中，仍需要这些描述符文件且他们的格式没有改变。
In V5, these descriptor files are still required and their format has not changed.
签名格式扩展了字段和方法描述符的概念，将泛型类型信息包含于其中。
The signature format extends the idea of field and method descriptors to include generic type information.
映射描述符的格式是XML—这是有充分理由的。
The format of the mapping descriptor is XML — and for good reason.
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