Core utilities - zero dependency base library for JDK 25+

Pure-Java image codec library (PNG/BMP/GIF) and FFM bindings for native codecs (JPEG/WebP). Zero java.desktop, GraalVM native-image friendly.

Unified JSON processing facade with SPI mechanism. 统一 JSON 处理门面，支持 SPI 可插拔引擎。

Lightweight expression engine with arithmetic, comparison, logical operators, property access, method calls, collection operations, and sandbox execution for JDK 25+

OpenCode Base - Reflection utilities for JDK 25+

Unified serialization facade with SPI mechanism, supporting JSON, JDK binary, and more. 统一序列化门面，支持 SPI 可插拔机制，支持 JSON、JDK 二进制等多种格式。

Hash utilities for JDK 25+ - MurmurHash3, xxHash, Bloom Filter, Consistent Hash, SimHash

Comprehensive string processing library with naming conversion, template engine, similarity algorithms, and data desensitization for JDK 25+

OpenCode Base Crypto - Modern cryptographic utilities for JDK 25+

Distributed ID generation library for JDK 25+

High-performance local cache library with LRU/LFU/W-TinyLFU eviction policies for JDK 25+