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if(condition(a)) { handle(a) } 即便 condition 和 handle 都是线程安全的，但因为分成了两步，不符合原子性，因此是不安全的。解决方案就是在这个方法上加一个 synchronized 锁。同步容器并不是绝对的线程安全，只能说安全性更高，比如 Vector ...

Java并发编程 - 线程不安全类与解决方案（Set）

HashSet、TreeSetpackage com.mmall.concurrency.example.commonUnsafe; import com.mmall.concurrency.annoations.NotThreadSafe; import lombok.extern.slf4j.S...

Java并发编程 - 线程不安全类与解决方案（Map）(二)

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Java并发编程 - 线程不安全类与解决方案（Map）(一)

HashMap、TreeMappackage com.mmall.concurrency.example.commonUnsafe; import com.mmall.concurrency.annoations.NotThreadSafe; import lombok.extern.slf4j.S...

Java并发编程 - 线程不安全类与解决方案（String）

StringBuilderpackage com.mmall.concurrency.example.commonUnsafe; import com.mmall.concurrency.annoations.NotThreadSafe; import lombok.extern.slf4j.Slf...

Java并发编程 - 线程不安全类与解决方案（Date）

SimpleDateFormatpackage com.mmall.concurrency.example.commonUnsafe; import com.mmall.concurrency.annoations.NotThreadSafe; import lombok.extern.slf4j....

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