Top 3 Java non-blocking Projects

Vert.x

46 14,046 9.6 Java

Vert.x is a tool-kit for building reactive applications on the JVM

Project mention: Spark – A web micro framework for Java and Kotlin | news.ycombinator.com | 2024-02-10

https://vertx.io/
It's actively maintained with full time developers, performant, supports Kotlin out of the box, and has more features?

JsonSurfer

1 287 5.3 Java

A streaming JsonPath processor in Java
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
TLS Channel

0 183 8.0 Java

A Java library that implements a ByteChannel interface over SSLEngine, enabling easy-to-use (socket-like) TLS for Java applications.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).