Non-Blocking Reactive Foundation for the JVM

Apache Log4j is a versatile, feature-rich, efficient logging API and backend for Java.

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.

Very spicy additions to the Java programming language.

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

Using Mockito with Kotlin

Most popular Mocking framework for unit tests written in Java

Spring AMQP - support for Spring programming model with AMQP, especially but not limited to RabbitMQ

KeyStore Explorer is a free GUI replacement for the Java command-line utilities keytool and jarsigner.

Awaitility is a small Java DSL for synchronizing asynchronous operations

MySQL Connector/J

Show file encoding and line ending for the active editor in the eclipse status bar. Encoding can be changed by right click. Line ending support showing CRLF, CR, LF and Mixed.