checkstyle by checkstyle

Checkstyle is a development tool to help programmers write Java code that adheres to a coding standard. By default it supports the Google Java Style Guide and Sun Code Conventions, but is highly configurable. It can be invoked with an ANT task and a command line program.

created at Aug. 31, 2013, 2:05 a.m.

222 +0

8,139 +5

3,632 +1

cucumber-jvm by cucumber

Cucumber for the JVM

created at June 27, 2011, 7:49 p.m.

214 -1

2,676 +1

2,012 +0

oryx by OryxProject

Oryx 2: Lambda architecture on Apache Spark, Apache Kafka for real-time large scale machine learning

created at July 25, 2014, 8:08 p.m.

209 +0

1,788 +1

405 +0

simple-binary-encoding by real-logic

Simple Binary Encoding (SBE) - High Performance Message Codec

created at Sept. 3, 2013, 9:13 a.m.

209 +1

3,024 +2

512 +2

resilience4j by resilience4j

Resilience4j is a fault tolerance library designed for Java8 and functional programming

created at June 3, 2015, 9:21 a.m.

208 +1

9,442 +8

1,296 +1

Jest by searchbox-io

Elasticsearch Java Rest Client.

created at May 21, 2012, 1:37 p.m.

204 +0

2,112 +0

726 +0

config by lightbend

configuration library for JVM languages using HOCON files

created at Dec. 6, 2011, 8:02 a.m.

197 +0

6,091 +1

965 +1

JCTools by JCTools

None

created at Nov. 10, 2013, 6:04 p.m.

190 +0

3,477 +4

552 +2

reflections by ronmamo

Java runtime metadata analysis

created at April 16, 2013, 4:19 p.m.

189 +0

4,667 +2

692 +0

Smack by igniterealtime

A modular and portable open source XMPP client library written in Java for Android and Java (SE) VMs

created at Feb. 3, 2014, 11:36 a.m.

186 +0

2,367 +0

880 +0

rest.li by linkedin

Rest.li is a REST+JSON framework for building robust, scalable service architectures using dynamic discovery and simple asynchronous APIs.

created at Nov. 30, 2012, 7:37 p.m.

185 +0

2,435 -2

542 +1

armeria by line

Your go-to microservice framework for any situation, from the creator of Netty et al. You can build any type of microservice leveraging your favorite technologies, including gRPC, Thrift, Kotlin, Retrofit, Reactive Streams, Spring Boot and Dropwizard.

created at Nov. 16, 2015, 4:04 a.m.

182 +0

4,677 +1

889 +1

thumbnailator by coobird

Thumbnailator - a thumbnail generation library for Java

created at July 25, 2015, 5:38 a.m.

181 +0

5,011 +9

778 +0

DependencyCheck by jeremylong

OWASP dependency-check is a software composition analysis utility that detects publicly disclosed vulnerabilities in application dependencies.

created at Sept. 3, 2012, 8:43 p.m.

176 -1

5,892 +13

1,203 +0

graphhopper by graphhopper

Open source routing engine for OpenStreetMap. Use it as Java library or standalone web server.

created at Feb. 18, 2012, 7:57 p.m.

176 +0

4,703 +23

1,511 +4

FizzBuzzEnterpriseEdition by EnterpriseQualityCoding

FizzBuzz Enterprise Edition is a no-nonsense implementation of FizzBuzz made by serious businessmen for serious business purposes.

created at Nov. 24, 2012, 12:14 a.m.

176 -1

20,517 +24

746 +3

javacpp by bytedeco

The missing bridge between Java and native C++

created at April 21, 2014, 12:47 p.m.

175 +0

4,382 +4

570 -1

reactor-core by reactor

Non-Blocking Reactive Foundation for the JVM

created at Nov. 10, 2015, 10:06 a.m.

173 +0

4,826 +6

1,177 +0

Leaf by Meituan-Dianping

Distributed ID Generate Service

created at Dec. 11, 2018, 7:41 a.m.

168 +0

6,288 +0

1,815 -2

powermock by powermock

PowerMock is a Java framework that allows you to unit test code normally regarded as untestable.

created at May 28, 2014, 7:53 a.m.

167 +0

4,128 +1

582 +0