Groovy MOP (Meta-Object Protocol) explained with 10+ tested examples. Learn method resolution, MetaClass hierarchy, and how Groovy dispatches every call. “The MOP is the beating heart of Groovy’s dynamism. Every method call, every property access, every operator – they all flow through the Meta-Object Protocol.” Dierk König, Groovy in Action Last Updated: March 2026 | Tested on: Groovy 5.x, Java 17+ | Difficulty: Intermediate to Advanced | Reading Time: 18 minutes Unlike Java, where method calls are resolved at compile ... Read More