如果类加载器几乎没有定义任何的类实例，那么这个类加载器很可能是空闲的。

If next to no instances of classes are defined by a classloader, then it is likely that the classloader is idle.

youdao

更新 上个月的代码以使用自定义类加载器方法是很容易的。

Updating the code from last month to use the custom classloader approach is easy.

youdao

真正的实现可能需要其他自定义类加载器，该加载器将搜索为编译提供的某些类路径。

A real implementation may need another custom class loader that would search through some classpath provided just for the compilation.

youdao