97% merged
replies in 2 hours
6 first-timers merged
Outside contributors get real replies here, and their work gets merged.
Most welcoming Java repos
30 repos, most welcoming first
- report →
5 starter issuesall unclaimed
- code
84% mergedreport →replies in about an hour
28 first-timers merged
An issue to start with#374 JEP 536 – JFR In-Process Data Redaction (opens GitHub)
apache/
incubator-kie Apache KIE (Knowledge Is Everything) is the home of Drools, OptaPlanner, jBPM, and Kogito.
Java 6.3k stars
85% mergedreport →replies in 16 hours
18 first-timers merged
Outside contributors get real replies here, and their work gets merged.
- 85% mergedreport →
replies in 3 hours
32 first-timers merged
Outside contributors get real replies here, and their work gets merged.
JanssenProject/
jans The Janssen Project is a home for open source IAM components, featuring Auth Server (OAuth/OpenID), Agama low-code identity orchestration, and the Cedarling policy decision point. The "Janssen Server" distributions bundle IAM components under one control plane.
Java · Rust 652 stars
1 starter issuetaken
- code
- docs
100% mergedreport →replies in under a minute
4 first-timers merged
An issue to start with#15208 fix: fix(docs): autogenerate docs -autocreated (opens GitHub)1 open pull request
AthenZ/
athenz Open source platform for X.509 certificate based service authentication and fine grained access control in dynamic infrastructures. Athenz supports provisioning and configuration (centralized authorization) use cases as well as serving/runtime (decentralized authorization) use cases.
Java · JavaScript 1.0k stars
88% mergedreport →replies in about a day
16 first-timers merged
Outside contributors get real replies here, and their work gets merged.
jvondermarck/
dinosaur-exploder 🦖 Classic arcade shoot 'em up built with Java & FXGL. Contributions welcome – game & Next.js docs.
Java · TypeScript 110 stars
4 starter issues2 unclaimed
- code
- docs
80% mergedreport →replies in 23 hours
53 first-timers merged
An issue to start with#405 [Bug]: Cursor texture corrupted after loading Japanese font glyphs (opens GitHub)
checkstyle/
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.
Java 9.6k stars
79% mergedreport →replies in 7 hours
14 first-timers merged
Outside contributors get real replies here, and their work gets merged.
- 81% mergedreport →
replies in 15 hours
33 first-timers merged
Outside contributors get real replies here, and their work gets merged.
1 starter issueunclaimed
- code
82% mergedreport →replies in 2 hours
28 first-timers merged
An issue to start with#13030 Check if there are metrics that should be added to the Kafka dashboard. (opens GitHub)
sakaiproject/
sakai Sakai is a freely available, feature-rich technology solution for learning, teaching, research and collaboration. Sakai is an open source software suite developed by a diverse and global adopter community.
Java 1.2k stars
92% mergedreport →replies in 3 hours
2 first-timers merged
Outside contributors get real replies here, and their work gets merged.
eclipse-openj9/
openj9 Eclipse OpenJ9: A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR (https://github.com/eclipse/omr) and combines with the Extensions for OpenJDK for OpenJ9 repo.
Java · C++ 3.5k stars
1 starter issueunclaimed
- code
80% mergedreport →replies in 2 hours
16 first-timers merged
An issue to start with#24803 Replace `scanMonitorLookupCaches()` loop with memset (opens GitHub)
1 starter issuetaken
- design
75% mergedreport →replies in 2 days
15 first-timers merged
An issue to start with#3386 UI: Sort components (inverters, meters, ...) by Alias (opens GitHub)1 open pull request
apache/
fory A blazingly fast multi-language serialization framework for idiomatic domain objects, schema IDL, and cross-language data exchange.
Java · Python 4.6k stars
2 starter issuesall taken
- code
79% mergedreport →replies in 7 hours
15 first-timers merged
An issue to start with#2941 [Java] support copy non-serializable objects such as java.lang.Package (opens GitHub)1 open pull request
- 74% mergedreport →
replies in 3 hours
13 first-timers merged
Outside contributors get real replies here, and their work gets merged.
debezium/
debezium Change data capture for a variety of databases. Please log issues at https://github.com/debezium/dbz/issues.
Java 13k stars
73% mergedreport →replies in 16 hours
21 first-timers merged
Outside contributors get real replies here, and their work gets merged.
microcks/
microcks The open source, cloud native tool for API Mocking and Testing. Microcks is a Cloud Native Computing Foundation incubating project 🚀
Java · TypeScript 2.1k stars
2 starter issues1 unclaimed
- code
- tests
- design
69% mergedreport →replies in 2 days
19 first-timers merged
An issue to start with#2116 test: migrate webapp ITs from TestRestTemplate to RestTestClient (opens GitHub)
2 starter issuesall unclaimed
- code
74% mergedreport →replies in 2 hours
15 first-timers merged
An issue to start with#2170 [release] JRELEASER_DEFAULT_GIT_REMOTE ignored during tagging v2 (opens GitHub)
alibaba/
nacos an easy-to-use dynamic service discovery, configuration and service management platform for building AI cloud native applications.
Java 33k stars
1 starter issueunclaimed
- code
69% mergedreport →replies in 17 hours
18 first-timers merged
An issue to start with#15846 nacos.io网站里有文字书写错误 (opens GitHub)
- 66% mergedreport →
replies in 10 days
17 first-timers merged
Outside contributors get real replies here, and their work gets merged. Replies are slow here: typically 9.7 days, beyond your 7-day budget.
FasterXML/
jackson-databind General data-binding package for Jackson: works on streaming API (core) implementation(s)
Java 3.8k stars
64% mergedreport →replies in 14 hours
16 first-timers merged
Outside contributors get real replies here, and their work gets merged.
- 75% mergedreport →
replies in 23 hours
9 first-timers merged
Outside contributors get real replies here, and their work gets merged.
5 starter issuesall unclaimed
- code
65% mergedreport →replies in 2 days
23 first-timers merged
An issue to start with#3258 [1.21.1] NeoForge wrongly displays the alpha for panorama_overlay.png during the opening transition with earlyWindowControl (opens GitHub)
line/
armeria 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.
Java 5.1k stars
72% mergedreport →replies in 23 hours
13 first-timers merged
Outside contributors get real replies here, and their work gets merged.
FasterXML/
jackson-core Core part of Jackson that defines Streaming API as well as basic shared abstractions
Java 2.4k stars
67% mergedreport →replies in 10 hours
13 first-timers merged
Outside contributors get real replies here, and their work gets merged.
1 starter issueunclaimed
- docs
65% mergedreport →replies in 17 hours
15 first-timers merged
An issue to start with#2717 typo in gltf loader aspectRation -> aspectRatio (opens GitHub)
- 74% mergedreport →
replies in 14 hours
7 first-timers merged
Outside contributors get real replies here, and their work gets merged.
kestra-io/
kestra Event Driven Orchestration & Scheduling Platform for Mission Critical Applications
Java · TypeScript 29k stars
5 starter issuesall unclaimed
- code
- docs
- tests
79% mergedreport →replies in 2 days
9 first-timers merged
An issue to start with#20063 Unit tests: replace explicit `any` with real types in Editor language services (opens GitHub)
junit-team/
junit-framework ✅ The programmer-friendly testing framework for Java and the JVM
Java 7.1k stars
66% mergedreport →replies in 21 hours
12 first-timers merged
Outside contributors get real replies here, and their work gets merged.
