为了更加智能化，编译器优化会在单例对象所有域完全初始化前就创建该单例对象（参见《重复检查锁的致命点》）。

To wit, compiler optimizations can make the assignment of the new singleton object before all its fields are initialized. (See "Double-checked locking is broken" in Resources.)

youdao

为了更加智能化，编译器优化会在单例对象所有域完全初始化前就创建该单例对象（参见《重复检查锁的致命点》）。

To wit, compiler optimizations can make the assignment of the new singleton object before all its fields are initialized. (See "Double-checked locking is broken" in Resources.)

youdao