What is Procyon?
Procyon is an open-source Java decompiler developed by Ststroika that aims to rebuild the original Java source code from compiled Java bytecode. It supports decompiling code from Java versions 5 through 15 and can decompile entire projects or individual .class files into human-readable and compilable Java code.
Some key features of Procyon include:
- Supports decompiling Java 5 - 15 bytecode
- Preserves original naming and structure of code as much as possible
- Handles complex language features like lambdas, try-with-resources, etc.
- Extensible architecture allowing easy integration of new functionality
- Command line, GUI, and developer API available
- Integrates with popular IDEs like IntelliJ, Eclipse, and NetBeans
- Free and open-source under Apache 2.0 license
Procyon can be useful for examining and understanding the implementation of Java libraries or tools when source code is not available. It allows developers to learn from, borrow ideas from, integrate with, and even recompile decompiled third-party Java code. The output Java code approximates the structure and naming of the original source code reasonably well.