Hardly anyone ever used Jazelle. I'm sure someone did but I don't know of a single production system using it today (maybe some legacy java based mobiles). Ja

Hardly anyone ever used Jazelle. I'm sure someone did but I don't know of a single production system using it today (maybe some legacy java based mobiles). Jazelle does not execute bytecode directly, it is not a JVM. It is a small subset of the features needed and to use it at all required a JVM written specifically for it along with specific OS support. It also required a specific licence from ARM to use. Ultimately, JIT based JVMs performed as well or better than Jazelle without the implementation specific development time or licencing costs of Jazelle. For all intents and purposes, Jazelle was a complete failure.