Free universal database tool and SQL client

Powerful and flexible library for loading, caching and displaying images on Android.

The official home of the Presto distributed SQL query engine for big data

greenDAO is a light & fast ORM solution for Android that maps objects to SQLite databases.

An asynchronous, callback-based Http client for Android built on top of Apache's HttpClient libraries.

The world's fastest open query engine for sub-second analytics both on and off the data lakehouse. With the flexibility to support nearly any scenario, StarRocks provides best-in-class performance …

📈 Capturing JVM- and application-level metrics. So you know what's going on.

Asynchronous Http and WebSocket Client library for Java

configuration library for JVM languages using HOCON files

Apache Calcite

CrateDB is a distributed and scalable SQL database for storing and analyzing massive amounts of data in near real-time, even with complex queries. It is PostgreSQL-compatible, and based on Lucene.

TLC is a model checker for specifications written in TLA+. The TLA+Toolbox is an IDE for TLA+.

Pravega - Streaming as a new software defined storage primitive

A example of an android app that receives push notifications using MQTT.

Erlang IDE

A record-oriented store built on FoundationDB

Simple, fast and typesafe Java actor model implementation