Micrometer Observation API instrumentation and Spring Boot 3/4 Auto-Configuration for JDBC APIs

Provide listener framework for JDBC interactions and query executions via proxy.

Language-agnostic XML and HTML test reporting formats and tooling. Maintained by the JUnit team.

Provides tracing abstractions over tracers and tracing system reporters.

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Context Propagation API

Spring Native is now superseded by Spring Boot 3 official native support

OpenTracing instrumentation for Reactor

A style guide for authors of Spring's technical documents (reference guides, getting started guides, tutorials, and so on).

Connection Pooling for Reactive Relational Database Connectivity

A set of tools to improve Project Reactor's debugging and development experience.

R2DBC Proxying Framework

Backport of Java 8's lambda expressions to Java 7, 6 and 5

Java annotation for documenting the @API status of types and members in Java APIs. Maintained by the JUnit team.

An application observability facade for the most popular observability tools. Think SLF4J, but for observability.

Spring Boot integration with p6spy, datasource-proxy, flexy-pool and spring-cloud-sleuth

Spring Polyglot

Common Java exception classes to represent test failures. Maintained by the JUnit team.

Toying around with the JUnit Lambda Prototype

Spring TestContext Framework Extension for JUnit Jupiter (a.k.a., JUnit 5)

Collection of JUnit example projects

Xenon - Decentralized Control Plane Framework

✅ The programmer-friendly testing framework for Java and the JVM

Intelligent object mapping

Single jar file to execute all your packaged JUnit4 tests