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Learn about the best practices for concurrency in Java to ensure your multi-threaded applications are efficient, synchronized, and error-free. Concurrency in Java is the ability of multiple threads to ...

Avoid use of types that are deprecated as of Java 26. Include ASM 9.9 that offers ASM support for Java 26. Make sure that generated code internal to Byte Buddy supports CDS if available. Update ...

如果线程池里有 10 个线程，某一段时间内任务突然变多，那么前 10 个任务会被线程执行，后面的任务就会一直进入队列。因为队列几乎没有上限，所以线程池不会拒绝任务，任务只会越堆越多。如果任务生产速度一直大于消费速度，最后占用的就是堆内存 ...

很多同学只学会了「加注解」，却不懂Spring异步AOP底层、线程池选型差异、任务超时控制、跨线程上下文复制、事务隔离边界。 在后端开发中，@Async是使用率最高的异步方案，但线上事故频发：接口偶发OOM、链路追踪ID丢失、异步任务静默失败、同类内部调用 ...