Zipkin is a distributed tracing system

Grafana Tempo is a high volume, minimal dependency distributed tracing backend.

Carbon is one of the components of Graphite, and is responsible for receiving metrics over the network and writing them down to disk using a storage backend.

Whisper is a file-based time-series database format for Graphite.

Progressive enhancement for HTML

An HTTP router and reverse proxy for service composition, including use cases like Kubernetes Ingress

UUIDv7 in N languages

A simple to use Java 8 JWT Library. Verify, Sign, Encode, Decode all day.

Google core libraries for Java

Spring Framework

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

The java implementation of Apache Dubbo. An RPC and microservice framework.

Getting Started with Spring Boot 3:

Netty project - an event-driven asynchronous network application framework

Mirror of Apache Kafka

Event bus for Android and Java that simplifies communication between Activities, Fragments, Threads, Services, etc. Less code, better quality.

Hystrix is a latency and fault tolerance library designed to isolate points of access to remote systems, services and 3rd party libraries, stop cascading failure and enable resilience in complex di…

APM, Application Performance Monitoring System

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

Redisson - Valkey and Redis Java client. Complete Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Over 50 Valkey and Redis based Java objects and services: Set, Multimap, SortedSet, Map, L…

Apache RocketMQ is a cloud native messaging and streaming platform, making it simple to build event-driven applications.

GraalVM compiles Java applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀

光 HikariCP・A solid, high-performance, JDBC connection pool at last.

Empowering Data Intelligence with Distributed SQL for Sharding, Scalability, and Security Across All Databases.

The Java gRPC implementation. HTTP/2 based RPC

Realm is a mobile database: a replacement for SQLite & ORMs

Redis Java client

Apache ZooKeeper

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

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