Reactive Extensions for Java

Apache HttpComponents Client

The AWS Java SDK for Amazon S3 module holds the client classes that are used for communicating with Amazon Simple Storage Service

Spring Data makes it easy to use data access technologies, relational and non-relational databases, map-reduce frameworks, and cloud-based data services.

MongoDB support for Spring Data

Valkey and Redis Java client, Real-Time Data Platform. Sync/Async/RxJava/Reactive API.

Advanced and thread-safe Java Redis client for synchronous, asynchronous, and reactive usage. Supports Cluster, Sentinel, Pipelining, Auto-Reconnect, Codecs and much more.

A Retrofit CallAdapter for RxJava 3's stream types.

Infinispan core module

RxAndroid

The Amazon Kinesis Client Library for Java enables Java developers to easily consume and process data from Amazon Kinesis.