A：JDK 26预定于2026年3月17日发布，包含10个主要新功能：原始类型模式匹配的第四次预览、提前时对象缓存、Vector API第十一次孵化、惰性常量和PEM编码的第二次预览、结构化并发第六次预览、deep reflection警告、G1 GC性能优化、HTTP/3支持，以及移除Java Applet API。

A JDK Enhancement Proposal (JEP) to prepare to make final mean final in Java would issue warnings about uses of deep reflection to mutate final fields. The warnings would prepare Java developers for a ...

In response to my recent blog posting Immutable Java Objects, Matt brought up a good point of discussion related to making Java classes truly immutable by declaring them as final so that they cannot ...