Awesome GitHub RepositoriesBytecode Manipulation

Arthas is a Java diagnostic tool and runtime debugger designed for real-time troubleshooting of applications. It functions as a remote diagnostics agent that allows users to inspect the runtime state of a Java process, including its heap objects and classloader hierarchies, without requiring a process restart. The project distinguishes itself through advanced bytecode manipulation capabilities, enabling live class hotswapping and the modification of bytecode in running processes. It supports in-memory source compilation and runtime bytecode decompilation to verify and update logic instantly w

Apktool is an Android APK reverse engineering tool designed to decode application packages into human-readable form and rebuild them after modification. It functions as a Dalvik bytecode disassembler and a resource decoder, transforming binary Android XML and DEX files into editable text and Smali representation. The project serves as an application rebuilder, packing modified resources and Smali code back into a functional Android application package. This capability enables the modification of application logic and resources for testing and deployment. The tool covers a broad surface of an

This project is a Java bytecode reverse engineering suite that functions as a disassembler, decompiler, and editor for Java class files and Android APK binaries. It provides tools to transform compiled bytecode into assembly instructions or readable source code. The toolset supports Android APK analysis and Java binary patching, allowing for the modification of source code or bytecode and subsequent recompilation into functional binaries. It includes capabilities for removing Java obfuscation and performing malware analysis through the detection of malicious code patterns. The system incorpo

Byte Buddy is a runtime code generation and bytecode manipulation library for Java. It provides a fluent API for creating and modifying Java classes during execution, enabling developers to define class structures, methods, and fields programmatically without requiring a compiler or direct bytecode assembly. The library supports agent-based class transformation, allowing loaded classes to be modified during JVM startup or runtime through a Java agent that intercepts class loading. It offers bytecode-level method interception for fine-grained control over method behavior, annotation-based code

cglib ist eine Suite von Tools für JVM-Bytecode-Generierung, Klassentransformation und dynamisches Proxying. Sie bietet eine High-Level-API zum Erstellen und Transformieren von Java-Bytecode zur Laufzeit, um das Klassenverhalten zu modifizieren, sowie ein Framework zum Abfangen von Methodenaufrufen und Feldzugriffen. Das Projekt implementiert dynamische Proxy-Generierung zur Unterstützung aspektorientierter Programmierung und benutzerdefinierter Datenzugriffsmuster. Es enthält zudem einen Serialisierungsmanager, um Serialisierungsverträge durch das Hinzufügen spezifischer Methoden und die Steuerung des Objektaustauschs innerhalb von Proxy-Klassen zu implementieren. Die Bibliothek deckt Bytecode-Manipulation und Laufzeit-Codetransformation ab, um Klassenstrukturen vor dem Laden zu verändern. Sie beinhaltet zudem Performance-Optimierungstechniken, um Proxy-Overhead durch Methodenfilterung und leichtgewichtige Callbacks zu reduzieren.

Javassist is a bytecode engineering toolkit for analyzing, modifying, and generating Java bytecode and class files. It functions as a bytecode manipulation library that allows for the editing of class files through either direct bytecode access or high-level source code syntax. The project provides specialized tools for the programmatic creation of new Java classes and interfaces during runtime. It includes a dynamic proxy generator for intercepting method calls and a class loader interceptor that automatically modifies class definitions as they are loaded into the Java Virtual Machine. Addi

Mixin is a trait/mixin and bytecode weaving framework for Java using ASM

Jitescript - Java API for Bytecode

A project to cause (controlled) destruction on your jvm application

Cojen/Maker is a lightweight, full-featured, low-level dynamic Java class generator designed for ease of use.