Stars
Free and Open Source, Distributed, RESTful Search Engine
A distributed task scheduling framework.（分布式任务调度平台XXL-JOB）
OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)
FizzBuzz Enterprise Edition is a no-nonsense implementation of FizzBuzz made by serious businessmen for serious business purposes.
ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.
Tink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.
Asynchronous Http and WebSocket Client library for Java
Statistical Machine Intelligence & Learning Engine
JanusGraph: an open-source, distributed graph database
Joda-Time is the widely used replacement for the Java date and time classes prior to Java SE 8.
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.
A better compressed bitset in Java: used by Apache Spark, Netflix Atlas, Apache Pinot, Tablesaw, and many others
Anthelion is a plugin for Apache Nutch to crawl semantic annotations within HTML pages.
A Swagger to AsciiDoc or Markdown converter to simplify the generation of an up-to-date RESTful API documentation by combining documentation that’s been hand-written with auto-generated API documen…
Stream summarizer and cardinality estimator.
A new data structure for accurate on-line accumulation of rank-based statistics such as quantiles and trimmed means
ZooKeeper client wrapper and rich ZooKeeper framework