libjdk - Java Desktop Library

libjdk is a comprehensive C++ implementation of the Java Development Kit (JDK), providing native C++ libraries that mirror the functionality of Java's core libraries and modules. While it provides Java-like APIs, it runs as native C++ code without requiring a Java Virtual Machine.

Overview

This project provides a complete C++ implementation of Java's desktop functionality, including:

• AWT Components: Abstract Window Toolkit for GUI components
• Swing Support: Lightweight GUI components
• Graphics2D: Advanced 2D graphics rendering
• Image Processing: Image loading, manipulation, and saving
• Font Rendering: Text rendering with various fonts
• Print Support: Printing functionality
• Accessibility: Accessibility features for GUI components
• Performance: Hardware-accelerated graphics rendering

Features

• ✅ Windows Support: Native Windows desktop applications
• ✅ CMake Build System: Modern, portable build configuration
• ✅ Comprehensive Testing: Extensive test suite included
• ✅ OpenJDK Compatible: Based on OpenJDK 17.35
• ✅ GPL Licensed: Free software with Classpath exception

Dependencies

• java.base: Core Java functionality (required)
• java.prefs: User preferences (required)
• java.datatransfer: Data transfer operations (required)
• java.xml: XML processing (required)
• java.logging: Logging framework (required)
• jdk.httpserver: HTTP server (required)

Project Structure

java.desktop/
├── main/                   # Main source code
│   ├── windows/            # Windows-specific code
│   │   ├── classes/         # Java class implementations
│   │   ├── include/         # Header files
│   │   └── native/          # Native implementations
├── test/                    # Test suite
├── legal/                   # Legal notices and licenses
└── CMakeLists.txt           # Build configuration

Contributing

1. Fork the repository
2. Create a feature branch
3. Make your changes
4. Add tests for new functionality
5. Ensure all tests pass
6. Submit a pull request

License

This project is licensed under the GNU General Public License v2 with the Classpath exception, allowing linking with proprietary software. See the LICENSE file for details.

Legal Notices

This project includes code from various open source projects. See the legal/ directory for detailed licensing information for each component.