Useful Java links

This is a fork of awesome link with new structure, additional license info and github's star info for every link, with a lot of new links (all non-mobile github projects with 390 or more star) and so on. The russian version is in this place.
The "Hello Worlds examples" project is in this place.

Useful java links

• I. Development

  • 1. Common frameworks and libraries
  • 2. Web development
  • 3. GUI
  • 4. Business
  • 5. Game Development
  • 6. Useful libraries
    • Collections
    • Date and Time
    • Dependency Injection and AOP
    • Console and Command line
    • Functional Programming
    • Reactive Programming
    • Security and Authentication
    • High Performance
    • Serialization and I/O
    • Logging
    • Bean Mapping and Validation
  • 7. Imagery and Video
  • 8. Code generation and changing byte code
  • 9. Distributed Applications
  • 10. Science
  • 11. OSGI

• II. Databases, search engines, big data and machine learning

  • 1. Databases and storages
    • Distributed Databases
  • 2. Data structures
  • 3. Search engines
  • 4. Client and drivers for databases
  • 5. ORM
  • 6. Working with messy data
  • 7. Big data
  • 8. Machine Learning
    • Semantic Web and Linked Data
    • Constraint Satisfaction Problem Solver
    • Natural Language Processing (NLP) and Speech Recognition

• III. Network and Integration

  • 1. Servers (Web Server and Application Server))
  • 2. Networking
  • 3. Message, message broker and message queue
  • 4. Http and ssh
  • 5. Rest Frameworks
  • 6. Integration frameworks
  • 7. Web Crawling and HTML parsering
  • 8. Json
  • 9. CSV
  • 10. Integratin with API
  • 11. Bitcoin
  • 12. Clouds
  • 13. Cluster Management
  • 14. Document Processing (XLS, DOC and PDF)
  • 15. Native
  • 16. XML and SOAP
  • 17. Geospatial Service Interation
  • 18. Reverse Proxy Servers

• IV. Testing

  • 1. Testing
  • 2. Code Coverage
  • 3. Continuous Integration
  • 4. Formal Verification

• V. Tools for developing

  • 1. IDE
  • 2. Deploy, config and build
    • Build
    • Configuration
    • Distribution
  • 3. Perfomance tools
  • 4. Code Analysis
  • 5. Monitoring
  • 6. Redefinition of classes at runtime
  • 7. Documentation
  • 8. Other

• VI. Program languages and applications that were written with Java

  • 1. Program languages that were written with Java
  • 2. Other program languages tools that were written with Java
  • 3. Javascript
  • 4. Frameworks that help to create parsers, interpreters or compilers
  • 5. Opensource applications that were written with Java
  • 6. Opensource games that were written with Java

• VII. Other

  • 1. Source code examples
  • 2. Benchmark results
  • 3. Working with git and github

• VIII. Resources

  • 1. Communities
  • 2. Influential Books
  • 3. Websites

I. Development

1. Common frameworks and libraries

Up

1. Spring framework The Spring Framework provides a comprehensive programming and configuration model for modern Java-based enterprise applications -- on any kind of deployment platform. A key element of Spring is infrastructural support at the application level: Spring focuses on the "plumbing" of enterprise applications so that teams can focus on application-level business logic, without unnecessary ties to specific deployment environments. License: Apache 2 , , stackoverflow - more 100 000 questions.
2. Google Guava The Guava project contains several of Google's core libraries that we rely on in our Java-based projects: collections, caching, primitives support, concurrency libraries, common annotations, string processing, I/O, and so forth.Requires JDK 1.6 or higher (as of 12.0). License: Apache 2 , .
3. Apache Commons - Apache Commons is an Apache project focused on all aspects of reusable Java components.Commons Proper is dedicated to one principal goal: creating and maintaining reusable Java components. License: Apache 2.
4. Spring Boot — Spring Boot makes it easy to create Spring-powered, production-grade applications and services with absolute minimum fuss. It takes an opinionated view of the Spring platform so that new and existing users can quickly get to the bits they need. License: Apache 2 , .
5. Lombok Very spicy additions to the Java programming language. Project Lombok makes java a spicier language by adding 'handlers' that know how to build and compile simple, boilerplate-free, not-quite-java code. License: MIT , .
6. Puniverse Quasar Fibers, Channels and Actors for the JVM. Hello World examples. License: Eclipse Public v1.0/GNU Lesser 3, .
7. Rootbeer GPU CompilerThe Rootbeer GPU Compiler lets you use GPUs from within Java. License: MIT , .
8. Oblac Jodd Jodd is set of open-source Java micro frameworks and tools; floppy size! Jodd = tools + ioc + mvc + db + aop + tx + json + html < 1.5 Mb. License: BSD 2, .
9. Google Jimfs An in-memory file system for Java 7+. License: Apache 2 , .
10. Spring batch Spring Batch is a framework for writing offline and batch applications using Spring and Java. License: Apache 2 , .
11. Microserver — A convenient Microservices plugin system for Spring & Spring Boot, with over 30 plugins and growing, that supports both micro-monolith and pure microservices styles. License: Apache 2 , .
12. Greenrobot common General purpose utilities and hash functions for Android and Java (aka java-common). License: Apache 2 , .
13. Kilim Lightweight threads for Java, with message passing, nio, http and scheduling support. License: MIT , .
14. Apache Isis Apache Isis is a framework for rapidly developing domain-driven apps in Java. Write your business logic in entities, domain services and repositories, and the framework dynamically (at runtime) generates a representation of that domain model as a webapp or as a RESTful API. For prototyping or production. License: Apache 2.
15. Apache Zest Apache Zest is a community based effort exploring Composite Oriented Programming for domain centric application development. This includes evolved concepts from Aspect Oriented Programming, Dependency Injection and Domain Driven Design. License: [Apache 2](http://www.apache.org/licenses/LI