Bytecode Libraries
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Java reflection and bytecode analysis toolkit, usable for all kinds of introspection and analysis of running code.
Last Release on Dec 27, 2021
This artifact originates from the Orbit Project at Eclipse, it is an osgi bundle and is signed as well.
Last Release on Jan 20, 2012

Relocated → org.ow2.asm » asm
A JVM bytecode generator for ASTs compatible with tools.analyzer(.jvm).
Last Release on Aug 9, 2014
The Jen Core provides the SoftClass API, with the ability to create and modify classes and their members.
Last Release on Oct 31, 2005
A lightweight (readonly) fork of javassist, used to load class structure, annotations and metadata from bytecode.
Last Release on May 30, 2015
Java bytecode traversal utilities
Last Release on Feb 14, 2024
High-level library for generating JVM bytecode
Last Release on Oct 22, 2020
Core Cglib Bytecode
Last Release on Aug 10, 2009
ASM Tree
Last Release on Apr 22, 2008

Relocated → org.ow2.asm » asm-tree
Bytecode Disassembler
Last Release on Oct 9, 2025