A blazingly fast multi-language serialization framework for idiomatic domain objects, schema IDL, and cross-language data exchange.
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JeroMQ is a pure Java implementation of the ZeroMQ messaging library, offering high-performance asynchronous messaging for distributed or concurrent applications.
zerocode-tdd is a community-developed, free, open-source, outcome-driven automated testing framework for Data Pipelines, ETL, REST API, Kafka(Data Streams), Databases and Load scenarios. all defined in simple JSON or YAML — with zero coding.
Microserver is a Java 8 native, zero configuration, standards based, battle hardened library to run Java Rest Microservices via a standard Java main class. Supporting pure Microservice or Micro-monolith styles.
ZeroTurnaround Process Executor
OpenAM is an open-source access management solution for identity authentication, authorization, and federation. It provides single sign-on, adaptive authentication, and centralized policy control, enabling secure access to web, mobile, and cloud applications
Zero-allocation hashing for Java
Fast, lightweight, and RFC 4180 compliant CSV library for Java. Zero dependencies, ~90 KiB. Trusted by Apache NiFi, JUnit, and Neo4j.
OpenDJ is an open-source LDAP directory server written in Java. It provides robust, scalable, and secure directory services for identity management, access control, and authentication in enterprise environments. OpenDJ supports LDAPv3 standard, replication, REST APIs, and high-performance
Java utilities: DeepEquals, Converter, LRUCache, CompactMap/Set, CaseInsensitiveMap, UniqueIdGenerator, FastReader/Writer, and more. Zero dependencies, JDK 8+
ZeroTurnaround Process Killer
OpenIG is an open-source identity gateway (reverse-proxy) that secures, routes, and manages web traffic. It enables authentication, access control, and integration with identity providers, delivering single sign-on and API security for web and cloud applications.
Simple, efficient Excel to POJO library for Java
Vert.x jOOQ DSL
Ultra-lightweight Java DI framework with JSR-330 support, fast classpath scanning, and zero boilerplate. Minimal alternative to Spring/Guice.
A scheduler based on plain Vertx promise/future/periodic/timer
A ZeroMQ Event Bus bridge for Vert.x 3.x.
Immuto - Java Records-first object mapper.An annotation processor generates type-safe mapper implementations at compile time; the generated code calls each target record's canonical constructor directly - zero runtime reflection, sealed class support, full Java 21+ idioms.
Code-first ORM for Spring Boot. Zero XML, Auto DDL & Fluent Join API. Define your schema in Java and enjoy dynamic SQL power.