It doesn’t take much Java development experience to learn firsthand what the NullPointerException is about. In fact, one person has highlighted dealing with this as the number one mistake Java ...

对于Java开发者而言，NullPointerException（空指针异常）堪称挥之不去的“梦魇”。编码时逻辑顺畅无虞，但项目一经运行，这一异常便可能突然现身，彻底中断业务流程。耗费大量时间排查后才发现，竟是某个字段遗漏了判空处理。这种被空指针支配的“PTSD”，让无数Java开发者苦不堪言。

While Java is one of the most in-demand and widely used programming languages in the world, it is not without its detractors. Java is not a particularly beginner-friendly language and it is rife with ...