1Java bytecode engineering toolkit 2### [Javassist version 3](http://www.javassist.org) 3 4Copyright (C) 1999-2018 by Shigeru Chiba, All rights reserved. 5 6Javassist (JAVA programming ASSISTant) makes Java bytecode manipulation 7simple. It is a class library for editing bytecodes in Java; it enables Java 8programs to define a new class at runtime and to modify a class file when the 9JVM loads it. Unlike other similar bytecode editors, Javassist provides two 10levels of API: source level and bytecode level. If the users use the source- 11level API, they can edit a class file without knowledge of the specifications 12of the Java bytecode. The whole API is designed with only the vocabulary of 13the Java language. You can even specify inserted bytecode in the form of 14source text; Javassist compiles it on the fly. On the other hand, the 15bytecode-level API allows the users to directly edit a class file as other 16editors. 17 18This software is distributed under the Mozilla Public License Version 1.1, 19the GNU Lesser General Public License Version 2.1 or later, or 20the Apache License Version 2.0. 21 22#### Files 23 24 * [Readme.html](Readme.html) 25Readme file (a longer version of this file). 26 27 * [License.html](License.html) 28License file 29 30 * [tutorial/tutorial.html](tutorial/tutorial.html) 31Tutorial 32 33 * ./javassist.jar 34The Javassist jar file (class files) 35 36 * ./src/main 37The source files 38 39 * [html/index.html](html/index.html) 40The top page of the Javassist API document. 41