That means no generics, no autoboxing, and no new-style for-each loop.

那意味着没有类属性、没有自动装箱(autoboxing)，也没有新样式for - each循环。

youdao

Autoboxing: Rather than generating calls to the valueOf method in the wrapper class, the compiler generates calls to the constructor instead.

自动装箱：编译器不生成对包装器类的value Of方法的调用，而是生成对构造函数的调用。

youdao

Using the JSR 14 target mode allows you to write code that uses generics, autoboxing, and the for-each loop in the "easy" cases, which may suffice for many projects.

使用 JSR 14 目标模式允许在 “简易” 情况下编写使用泛型、自动装箱和 for-each 循环的代码，这对多数项目来说可能足够了。

youdao