The article explains how a missing keep rule caused R8’s pre‑AGP 8 reflection optimizer to skip a class because its interface wasn’t in the allowed set, leading to the class name being obfuscated and mismatched in static‑block initialization via Class.forName, and describes the optimizer’s behavior and fixes.
This article reviews Java’s default class‑loading mechanism, explains the parent‑delegation model, discusses how it can be broken, and details Tomcat’s custom class‑loader architecture that intentionally deviates from the standard delegation to achieve web‑application isolation and hot‑swap capabilities.
This article explains how the Java Virtual Machine loads .class files into memory, detailing the three-stage process of loading, linking (verification, preparation, resolution), and initialization, while also covering array loading, custom class loaders, and common pitfalls such as deprecated APIs and verification options.
This article demystifies the JVM’s memory architecture and execution engine, walking through class loading, the runtime data areas, JIT versus interpreter, and native interactions, complemented by clear diagrams to help developers understand how Java manages memory and executes code.
