Projects

• Artificial Intelligence

  • LangChain4j - Simplifies integration of LLMs with unified APIs and a comprehensive toolbox.
  • MCP Java SDK - Enables applications to interact with AI models and tools through a standardized interface (i.e. Model Context Protocol), supporting both synchronous and asynchronous communication patterns.
  • simple-openai - Library to use the OpenAI API (and compatible ones) in the simplest possible way.

• Cloud

  • AWS SDK for Java - Provides Java APIs for interacting with Amazon Web Services.
  • Google Cloud Client Libraries - Client libraries for accessing Google Cloud services from Java applications.

• Bytecode Manipulation

  • Perses - Dynamically injects failure/latency at the bytecode level according to principles of chaos engineering.
  • bytecode-viewer - Java 8 Jar & Android APK reverse engineering suite. (GPL-3.0-only)
  • cglib - Bytecode generation library.
  • Javassist - Tries to simplify bytecode editing.
  • bytecode-viewer - Java 8 Jar & Android APK reverse engineering suite. (GPL-3.0-only)
  • cglib - Bytecode generation library.
  • Javassist - Tries to simplify bytecode editing.
  • Maker - Provides low level bytecode generation.
  • Mixin - Manipulate bytecode at runtime using real Java code.
  • Maker - Provides low level bytecode generation.
  • Mixin - Manipulate bytecode at runtime using real Java code.
  • ASM - All-purpose, low-level bytecode manipulation and analysis.
  • Recaf - JVM reverse engineering toolkit, essentially an IDE for Java bytecode.

• Code Generators

  • EasyEntityToDTO - Annotation processor for automatic DTO and Mapper generation with zero boilerplate.
  • ADT4J - JSR-269 code generator for algebraic data types.
  • Auto - Generates factory, service, and value classes.
  • FreeBuilder - Automatically generates the Builder pattern.
  • Geci - Discovers files that need generated code, updates automatically and writes to the source with a convenient API.
  • JavaPoet - API to generate source files.
  • JHipster - Yeoman source code generator for Spring Boot and AngularJS.
  • Record-Builder - Companion builder class, withers and templates for Java records.
  • Avaje Http Server - Generates Lightweight JAX-RS style http servers using Javalin or Helidon (Nima) SE.
  • Joda-Beans - Small framework that adds queryable properties to Java, enhancing JavaBeans.
  • Telosys - Simple and light code generator available as an Eclipse Plugin and also as a CLI.

• Architecture

  • ArchUnit - Test library for specifying and asserting architecture rules.
  • jMolecules - Annotations and interfaces to express design and architecture concepts in code.
  • ArchUnit - Test library for specifying and asserting architecture rules.
  • jMolecules - Annotations and interfaces to express design and architecture concepts in code.

• Bean Mapping

  • JMapper - Uses byte code manipulation for lightning-fast mapping. Supports annotations and API or XML configuration.
  • MapStruct - Code generator that simplifies mappings between different bean types, based on a convention-over-configuration approach.
  • ModelMapper - Intelligent object mapping library that automatically maps objects to each other.
  • Orika - JavaBean-mapping framework that recursively copies (among other capabilities) data from one object to another.
  • reMap - Lambda and method handle-based mapping which requires code and not annotations if objects have different names.
  • ModelMapper - Intelligent object mapping library that automatically maps objects to each other.
  • JMapper - Uses byte code manipulation for lightning-fast mapping. Supports annotations and API or XML configuration.
  • MapStruct - Code generator that simplifies mappings between different bean types, based on a convention-over-configuration approach.
  • Orika - JavaBean-mapping framework that recursively copies (among other capabilities) data from one object to another.
  • reMap - Lambda and method handle-based mapping which requires code and not annotations if objects have different names.

• Build

  • Buck2 - Encourages the creation of small, reusable modules consisting of code and resources.
  • Buck2 - Encourages the creation of small, reusable modules consisting of code and resources.
  • Bazel - Tool from Google that builds code quickly and reliably.

• Caching

  • Caffeine - High-performance, near-optimal caching library.
  • Caffeine - High-performance, near-optimal caching library.

• Configuration

  • config - Configuration library supporting Java properties, JSON or its human optimized superset HOCON.
  • centraldogma - Highly-available version-controlled service configuration repository based on Git, ZooKeeper and HTTP/2.
  • Configurate - Configuration library with support for various configuration formats and transformations.
  • dotenv - Twelve-factor configuration library which uses environment-specific files.
  • Externalized Properties - Lightweight yet powerful configuration library which supports resolution of properties from external sources and an extensible post-processing/conversion mechanism.
  • Gestalt - Gestalt offers a comprehensive solution to the challenges of configuration management. It allows you to source configuration data from multiple inputs, merge them intelligently, and present them in a structured, type-safe manner.
  • avaje config - Loads yaml and properties files, supports dynamic configuration, plugins, file-watching and config event listeners.
  • Curator Framework - High-level API for Apache ZooKeeper.

• CLI

  • jbock - Reflectionless command line parser.
  • JLine - Includes features from modern shells like completion or history.
  • Jansi - ANSI escape codes to format console output.
  • Text-IO - Aids the creation of full console-based applications.
  • Lanterna - Easy console text-GUI library, similar to curses. (LGPL-3.0-only)
  • Airline - Annotation-based framework for parsing Git-like command-line arguments.
  • Jexer - Advanced console (and Swing) text user interface (TUI) library, with mouse-draggable windows, built-in terminal window manager, and sixel image support. Looks like [Turbo Vision](https://en.wikipedia.org/wiki/Turbo_Vision).

• Code Analysis

  • Checkstyle - Static analysis of coding conventions and standards. (LGPL-2.1-or-later)
  • Error Prone - Catches common programming mistakes as compile-time errors.
  • Error Prone Support - Error Prone extensions: extra bug checkers and a large battery of Refaster templates.
  • Infer - Modern static analysis tool for verifying the correctness of code.
  • NullAway - Eliminates NullPointerExceptions with low build-time overhead.
  • PMD - Source code analysis for finding bad coding practices.
  • p3c - Provides Alibaba's coding guidelines for PMD, IDEA and Eclipse.
  • SonarJava - Static analyzer for SonarQube & SonarLint. (LGPL-3.0-only)
  • Spoon - Library for analyzing and transforming Java source code.
  • Spotbugs - Static analysis of bytecode to find potential bugs. (LGPL-2.1-only)

• Computer Vision

  • JavaCV - Java interface to OpenCV, FFmpeg, and much more.

• Code Coverage

  • Clover - Relies on source-code instrumentation instead of bytecode instrumentation.
  • Cobertura - Relies on offline (or static) bytecode instrumentation and class loading to collect code coverage metrics. (GPL-2.0-only)
  • JaCoCo - Framework that enables collection of code coverage metrics, using both offline and runtime bytecode instrumentation.

• Compiler-compiler

  • JavaCC - Parser generator that generates top-down parsers. Allows lexical state switching and permits extended BNF specifications.