As I covered in the last column, signatures are an item added to the class file format by generics; only references to generic types have signatures.

正如我在前一期中介绍的，签名是泛型添加到类文件格式中的项目；只有对泛型的引用才有签名。

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These classes define methods for modifying all aspects of the item represented by the class, including the actual bytecode body of a method or constructor.

这些类定义了修改由它们所表示的对象的所有方法的方法，包括方法或者构造函数中的实际字节码内容。

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Like system properties, global property descriptions are stored in the global item class by the connector.

与系统属性相似，连接器将全局属性描述存储在一个全局条目类中。

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