Contributing Search
All the projects below have beginner-friendly issues which are great places to start contributing
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datahub-project/datahub
The Metadata Platform for your Data and AI Stack
- #15505 - Ingestion Source policy is missing View privilege
- #15497 - Graphql api add subscription metod
- #15490 - The code returns incorrect response for any interactions with datahub graph entity when the URL is incorrect.
- #15482 - DataHub Actions container has incorrect CLI version
- #15460 - Add Native UI Internationalization (i18n) Support with User-Configurable Translation Files
- #15434 - Support batch authorization via Authorizer
Contributing Guide Code of Conduct -
reactor/reactor
Reactor Bill Of Materials (tracking reactor-core, reactor-netty and more)
- #731 - Consider enabling discussions tab on GitHub
- #730 - Did we have some tools like Java-profilers for perfomance or cost analyzing?
- #720 - No dependency management for `reactor-tools` with classifier `original`
- #707 - Reproducible Builds
- #701 - Use Spotless plugin to enforce and update copyright headers
- #700 - Use Spotless plugin to help enforce basic formatting / license
Contributing Guide Code of Conduct -
traneio/ndbc
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apache/gravitino
World's most powerful open data catalog for building a high-performance, geo-distributed and federated metadata lake.
- #9429 - Optimize Lance REST describe interface.
- #9425 - [EPIC] Performance improvement for Gravitino API
- #9418 - [Bug report] Iceberg catalog using GCS can't use the property `gcs-service-account-file`
- #9417 - [FEATURE] Implement the Hive shim layer to support Hive2/3
- #9414 - [Bug report] Trino connector - Iceberg metadata tables ($snapshots, $history, etc...) are not queryable
- #9411 - [Subtask] Add class RelationalCatalog
Contributing Guide Code of Conduct -
swagger-api/swagger-codegen
swagger-codegen contains a template-driven engine to generate documentation, API clients and server stubs in different languages by parsing your OpenAPI / Swagger definition.
- #12655 - gradle-swagger-generator-plugin is archived
- #12650 - [Bug]: Cannot target java LocalDateTime via type mappings
- #12635 - [Bug]: Fix Generating Object class attribute when having embedded allOf schema
- #12590 - [CDN]: Support Subresource integrity
- #12560 - Support OpenAPI 3.1.0 Specification in Swagger Codegen
- #12554 - Can't load config class with name rust
Contributing Guide Code of Conduct -
reactor/reactor-core
Non-Blocking Reactive Foundation for the JVM
- #4162 - Is there a Reactor operator that automatically merges signals under backpressure (mergeOnBackpressure)?
- #4153 - Schedulers.Factory.newThreadPerTaskBoundedElastic(int, int, ThreadFactory) is not publicly accessible
- #4124 - Recursive subscribe/loop during service shutdown
- #4102 - Provide bespoke thread-per-task-bounded-elastic scheduler
- #4079 - Broken link to KDoc API in the documentation
- #4060 - Calling Mono.transform with Hooks.enableContextLossTracking() raises additional cancel signals
Contributing Guide Code of Conduct -
cucumber/cucumber-parent
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openlineage/openlineage
An Open Standard for lineage metadata collection
- #4184 - [BUG][Java-client] CI fail to run
- #4183 - [BUG] [SPARK] misleading spark job statuses and event statuses
- #4177 - [Spark] IcebergHandler.getDatasetIdentifier throwing ClassCastException
- #4164 - [DOCUMENTATION] Test preview pages GH Action for website previews
- #4163 - [BUG] Symlink identifier namespace is wrongly detected when using YARN cluster mode with AWS Glue Data Catalog
- #4162 - [BUG] Iceberg handler broken for glue catalog because of missing aws identifier
Contributing Guide Code of Conduct -
deepjavalibrary/djl
An Engine-Agnostic Deep Learning Framework in Java
- #3821 - onnxruntime.dll:The dynamic link library (DLL) initialization routine failed.
- #3815 - [DJL Android] Enable Android 16 KB page size support
- #3811 - FastText Probability Values Greater Than 1 in DJL vs Python Implementation
- #3810 - GPU inference error in ai.djl.examples.inference.clip.ImageTextComparison
- #3807 - SentencePiece4J
- #3799 - Add percentile implementation for Pytorch engine
Contributing Guide Code of Conduct -
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.
- #6544 - Test failure: `com.linecorp.armeria.server.ServerTest.defaultStartStopExecutor()`
- #6539 - Provide better observability into `KeepAliveHandler`
- #6530 - Test failure: `com.linecorp.armeria.server.PortBasedVirtualHostTest.testVirtualHostNameWithoutPort()`
- #6529 - Test failure: `com.linecorp.armeria.xds.DynamicResourcesTest.basicCase()`
- #6520 - Test failure: `io.modelcontextprotocol.ArmeriaStreamableIntegrationTests.httpclient : testRootsSuccess(String)`
- #6508 - sun.misc.Unsafe::arrayBaseOffset has been called by com.linecorp.armeria.internal.shaded.jctools.maps.NonBlockingHashMap
Contributing Guide Code of Conduct -
projectnessie/nessie
Nessie: Transactional Catalog for Data Lakes with Git-like semantics
- #11665 - Support for Slirp4netns will probably be removed in Podman 6
- #11621 - [Feature]: Add Kubernetes GatewayAPI (Gateway with Listeners, TLS + HTTPRoutes) support for Helm chart
- #11579 - [Bug]: ICEBERG_CANNOT_OPEN_SPLIT
- #11353 - [Bug]: still need to provide s3 path even it defined in warehouse config in helm chart.
- #11273 - [Bug]: Garbage Collector ignores metadata/data for dropped tables
- #11199 - [Bug]: missing validation of `operations` content when creating a namespace
Contributing Guide Code of Conduct -
aws-amplify/aws-sdk-android
AWS SDK for Android. For more information, see our web site:
- #3681 - libblueshift-audioprocessing.so is not 16kb aligned for Android (used in lex module)
- #3679 - aws-android-sdk-s3 database : it is found that the database table has not been cleared after the multipart upload is completed
- #3673 - libKinesisVideoProducerJNI.so is not 16kb aligned for Android
- #3672 - Please encode LICENSE.APACHE.txt in UTF-8
- #3662 - AWS V4 Signer canonical headers list doesn't matches specification
- #3653 - Kotlin - AWS IoT Core(Subscribe issue)
Contributing Guide Code of Conduct -
stripe/stripe-android
Stripe Android SDK
- #12064 - [BUG] PaymentOption icon is blank
- #12057 - [Feature] Theming support for Identity verifications
- #12051 - [BUG] [P1] No IntentConfirmationChallengeArgs found
- #12050 - [BUG] [P1] java.lang.IllegalStateException: Missing arguments
- #12049 - [BUG] [P1] No args received for AttestationActivity
- #12048 - [BUG] [P1] Stripe Identity Android SDK crashes with Gradle 8.7 - Cannot progress past first scan
Contributing Guide Code of Conduct -
apache/polaris
Apache Polaris, the interoperable, open source catalog for Apache Iceberg
- #3222 - [feature request] storing additional business-oriented metadata
- #3221 - Add Ordinal enum value in PolarisEventType
- #3209 - Implement sending POJOs not within the Response to Events
- #3204 - Root user cannot rotate passwords
- #3196 - Pass principal name as part of aws subscoped credentials session name
- #3174 - Re-Enable ViewCatalogTests for cloudTests
Contributing Guide Code of Conduct -
apache/mahout
Mirror of Apache Mahout
- #699 - [QDP] improve memory management
- #696 - [QDP] [Bug] CUDA memory
- #695 - [QDP] [Benchmark] Add a End-to-End benchmark to compare with speed.
- #692 - [QDP] GPU/Cuda kernel Optimizations
- #691 - [QDP] [Benchmark] DataLoader Test: Compare with our Competitors
- #689 - [QDP] improve amplitudeEncoders for less copy memory allocations
Contributing Guide Code of Conduct -
scala-exercises/sbt-exercise
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finos/morphir
A universal language for business and technology
- #375 - 2025-11-27 (27 Nov 2025) - Morphir Project Meeting
- #374 - 2025-11-13 (13 Nov 2025) - Morphir Project Meeting
- #372 - 2025-10-30 (30 Oct 2025) - Morphir Project Meeting
- #371 - 2025-10-16 (16 Oct 2025) - Morphir Project Meeting
- #370 - 2025-10-02 (02 Oct 2025) - Morphir Project Meeting
- #369 - 2025-09-18 (18 Sep 2025) - Morphir Project Meeting
Contributing Guide Code of Conduct -
cucumber/action-publish-sbt
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pmd/pmd
An extensible multilanguage static code analyzer.
- #6317 - Automatic module 'pmd.core' is unstable
- #6308 - Add highlight on markdown format if language is provided
- #6297 - [java] AvoidUsingVolatile: Do not report long and double
- #6291 - [java] `EnumComparison` false positive for any object when object.equals(null)
- #6284 - [java] `UnnecessaryConstructor` reporting false-positive on JavaDoc-bearing constructor
- #6279 - [java] `EmptyMethodInAbstractClassShouldBeAbstract` should not trigger if method is overriding a method, overridden method is final and class is not
Contributing Guide Code of Conduct -
sbt/sbt-webdriver