CafeBabe now represents extendable framework . All tasks are implemented in form of plugins . Ability for modification UTF8-string that resides inside constant pool and method's body. Plugin that operates with bytecode has embedded bytecode editor . Abilities for searching of specified string inside bytecode.
System can work in console mode only.
You can choose appropriate script file for that. You can also find special script file for running under Unix environment. CafeBabe's main window represents bytecode structure directly, following the class file format specification. You can receive another tutorial issue playing with Class-Hound service . Class-Hound service has a great educational importance because it proposes live information about really existing classes, fields and methods vs. information, presented in documentation.