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

Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)

Apache Hive

General data-binding package for Jackson: works on streaming API (core) implementation(s)

Java annotation processor to create immutable objects and builders, for records too. Sweep boilerplate code under the rug!

Benchmark comparing serialization libraries on the JVM

Docker container orchestration platform

Embulk: Pluggable Bulk Data Loader.

This is a small extension to Google's Guava library to allow for the creation of configurable retrying strategies for an arbitrary function call, such as something that talks to a remote service wi…

MessagePack serializer implementation for Java / msgpack.org[Java]

Workload Automation System

LZ4 compression for Java

Exporting JMX mbeans made easy

Asakusa Framework

MySQL, PostgreSQL, Redshift and generic JDBC input plugins for Embulk

MySQL, PostgreSQL, Redshift and generic JDBC output plugins for Embulk

S3 file input plugin for Embulk

HDFS endpoint collecting and aggregating data flows

Java library for immutable human-friendly units

Embulk plugin that loads records from Google Cloud Storage

Oiyokan is an OData v4 server (provider) SDK for RDB. You can use Oiyokan to turn RDBMS into OData v4 services using JDBC driver. Based on Apache Olingo / h2 database.

Guice with JSR 250 Lifecycle annotations (@ PostConstruct and @ PreDestroy)

festivoice.net

Embulk FTP input plugin

Benchmark comparing serialization libraries on the JVM

MessagePack for Java New API Draft

Command file output plugin for Embulk

ROMA: A Distributed Key-Value Store in Ruby