我网上查到的资料是因为迭代器正在遍历的时候进行了插入操作，从而抛出了java.util.ConcurrentModificationException 那么如何避免 ...

本文作者记录了一次代码中的踩坑经历，一行很简单的代码在不同的场景下可能也暗藏玄机，希望大家看完都有所收获。 首先请大家花点时间阅读以下的代码块，看看代码是否存在问题或者隐患。 PostTask.java 如果你已经发现了所有的问题和隐患，那么恭喜你 ...

Community driven content discussing all aspects of software development from DevOps to design patterns. Have you inadvertently run into Java’s ...

只要把update（p） 放入if语句中，包括else，就会出错。 Caused by: java.util.ConcurrentModificationException at java.util.HashMap$HashIterator ...

With the increasingly complexity of concurrent applications, many developers find that Java’s low-level threading capabilities are insufficient to their programming needs. In that case, it might be ...