Most Java developers who come from a C/C++ background have probably at one time wished for a Java equivalent of sizeof(). Although Java lacks a true sizeof() equivalent, the Instrumentation interface ...

Imagine you are an expert object-oriented Java developer who meticulously crafts code the way an artist cares for their masterpiece. You believe clean code is an absolute necessity. Classes with clear ...

Object-oriented systems are usually partitioned into layers of related responsibilities and only dependencies in one direction are allowed, from higher layers (more specific, less reusable) to lower ...

本文介绍了一下OpenJDK的最新技术，对象头压缩，来大幅优化Java对象的内存占用。 前言 Java丰富的生态和语言强大的内存管理技术（GC），使得Java应用的开发非常便捷，各类应用场景的适配都非常优秀，大大减少了从Idea到应用落地的难度。不过这一切也不是没有 ...