Design patterns implemented in Java

Everything you need to know to get the job.

All Algorithms implemented in Java

Google core libraries for Java

RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.

Getting Started with Spring Boot 3:

Apache Flink

A Java serialization/deserialization library to convert Java Objects into JSON and back

Most popular Mocking framework for unit tests written in Java

Guice (pronounced 'juice') is a lightweight dependency injection framework for Java 11 and above, brought to you by Google.

AWS Service registry for resilient mid-tier load balancing and failover.

Welcome to the AWS Code Examples Repository. This repo contains code examples used in the AWS documentation, AWS SDK Developer Guides, and more. For more information, see the Readme.md file below.

Feign makes writing java http clients easier

Apache JMeter open-source load testing tool for analyzing and measuring the performance of a variety of services

Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.

✅ The 5th major version of the programmer-friendly testing framework for Java and the JVM

Hibernate's core Object/Relational Mapping functionality

MockServer enables easy mocking of any system you integrate with via HTTP or HTTPS with clients written in Java, JavaScript and Ruby. MockServer also includes a proxy that introspects all proxied t…

Algorithms and Data Structures implemented in Java

Allure Report is a flexible, lightweight multi-language test reporting tool. It provides clear graphical reports and allows everyone involved in the development process to extract the maximum of in…

A data integration framework

Make stream processing easier! Easy-to-use streaming application development framework and operation platform.

Annotation processor to create immutable objects and builders. Feels like Guava's immutable collections but for regular value objects. JSON, Jackson, Gson, JAX-RS integrations included

A collection of powerful data structures

The Apache Tika toolkit detects and extracts metadata and text from over a thousand different file types (such as PPT, XLS, and PDF).

Cucumber for the JVM

Code library for competitive programming purposes.

Java (and original) version of Hamcrest

fastutil extends the Java™ Collections Framework by providing type-specific maps, sets, lists and queues.