Java Good First Issues

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Open

SecurityMigrationExecutor and SystemIndexMigrationExecutor should not be persistent tasks

:Distributed/DistributedTeam:Distributedgood first issue

elastic/elasticsearch #146,662 opened Apr 17, 2026 · Java · 76,700 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

5 comments0 reactions0 assignees

Open

[OID4VCI] Issuance with Authorization Code Flow assumes same client_id for offer creation and redemption

area/oid4vchelp wantedkind/bugpriority/normalstatus/auto-bumpstatus/auto-expireteam/core-protocols

keycloak/keycloak #48,188 opened Apr 17, 2026 · Java · 34,398 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

7 comments1 reaction0 assignees

Open

[Improve][E2E] Make SeaTunnelContainer reusable across test classes to speed up E2E tests

Testhelp wantedimprove

apache/seatunnel #10,784 opened Apr 17, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

2 comments0 reactions1 assignee

Open

[Feature][Connector-V2][PostgreSQL-CDC] Support schema evolution

cdcconnectors-v2ddlfeaturehelp wanted

apache/seatunnel #10,777 opened Apr 16, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

1 comment0 reactions1 assignee

Open

[Feature][CDC][DDL] Support comment-related schema change events for CDC schema evolution

apicdcddldiscussionfeaturehelp wanted

apache/seatunnel #10,776 opened Apr 16, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

5 comments0 reactions0 assignees

Open

[Discuss] Discuss adding VARIANT SqlType for semi-structured data

discussionfeaturehelp wanted

apache/seatunnel #10,774 opened Apr 16, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

1 comment0 reactions0 assignees

Open

Custom Required Actions cannot be removed via PUT /admin/realms/{realm}/users/{id}

area/admin/apihelp wantedkind/bugpriority/normalstatus/auto-bumpstatus/auto-expireteam/core-protocolsteam/core-shared

keycloak/keycloak #48,144 opened Apr 16, 2026 · Java · 34,398 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments2 reactions0 assignees

Open

place "Garbage Collector" profile track near system stats

P4help wantedteam-Remote-Exectype: feature request

bazelbuild/bazel #29,310 opened Apr 15, 2026 · Java · 25,384 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments0 reactions0 assignees

Open

[2.x] `reboot` causes sbt to exit

Bughelp wanted

sbt/sbt #9,095 opened Apr 15, 2026 · Scala · 4,928 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

Open

App stuck on ignore

Help Wanted

MuntashirAkon/AppManager #1,956 opened Apr 15, 2026 · Java · 3,673 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

[Discussion][Zeta] Reduce historical job runtime info stored in IMap / StateStore with differentiated retention

Zetadiscussionhelp wantedimprove

apache/seatunnel #10,767 opened Apr 15, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

2 comments1 reaction0 assignees

Open

[Feature] When will Dubbo be compatible with Spring Boot 4?

help wanted

apache/dubbo #16,214 opened Apr 15, 2026 · Java · 41,524 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments0 reactions0 assignees

Open

[OID4VCI] c_nonce Replay

area/oid4vchelp wantedkind/bugpriority/normalstatus/auto-bumpteam/core-protocols

keycloak/keycloak #48,043 opened Apr 14, 2026 · Java · 34,398 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

3 comments1 reaction1 assignee

Open

[Bug] [Worker] File parameter transfer feature is broken

bughelp wanted

apache/dolphinscheduler #18,166 opened Apr 13, 2026 · Java · 11,659 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

6 comments0 reactions0 assignees

Open

Write an OpenRewrite rule to migrate to Rhino 2.0

good first issue

mozilla/rhino #2,363 opened Apr 12, 2026 · JavaScript · 3,728 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

2 comments0 reactions0 assignees

Open

[Feature]: Support outputSchema for MCP tools

area/core/toolenhancementhelp wanted

agentscope-ai/agentscope-java #1,204 opened Apr 12, 2026 · Java · 3,253 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments0 reactions0 assignees

Open

[Umbrella][Feature][Connector] Support New Connectors — Claim & Tracking

First-time contributorgood first issuehelp wanted

apache/seatunnel #10,753 opened Apr 12, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

10 comments0 reactions0 assignees

Open

CORS Header missing when accessing /account endpoint with an expired session

area/account/apihelp wantedkind/bugpriority/lowstatus/auto-bumpstatus/auto-expireteam/core-clientsteam/core-shared

keycloak/keycloak #47,934 opened Apr 10, 2026 · Java · 34,398 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment3 reactions0 assignees

Open

Core: Stream DV Puffin rewrite in RewriteTablePathUtil to reduce memory pressure

coregood first issueimprovement

apache/iceberg #15,924 opened Apr 9, 2026 · Java · 5,146 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

2 comments0 reactions1 assignee

Open

[Bug] List<Byte>, List<Short>, Map<String, Byte> deserialized as List<Integer>, Map<String, Integer> on provider side

help wanted

apache/dubbo #16,197 opened Apr 9, 2026 · Java · 41,524 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

java

Open

SecurityMigrationExecutor and SystemIndexMigrationExecutor should not be persistent tasks

:Distributed/DistributedTeam:Distributedgood first issue

elastic/elasticsearch #146,662 opened Apr 17, 2026 · Java · 76,700 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

5 comments0 reactions0 assignees

Open

[OID4VCI] Issuance with Authorization Code Flow assumes same client_id for offer creation and redemption

area/oid4vchelp wantedkind/bugpriority/normalstatus/auto-bumpstatus/auto-expireteam/core-protocols

keycloak/keycloak #48,188 opened Apr 17, 2026 · Java · 34,398 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

7 comments1 reaction0 assignees

Open

[Improve][E2E] Make SeaTunnelContainer reusable across test classes to speed up E2E tests

Testhelp wantedimprove

apache/seatunnel #10,784 opened Apr 17, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

2 comments0 reactions1 assignee

Open

[Feature][Connector-V2][PostgreSQL-CDC] Support schema evolution

cdcconnectors-v2ddlfeaturehelp wanted

apache/seatunnel #10,777 opened Apr 16, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

1 comment0 reactions1 assignee

Open

[Feature][CDC][DDL] Support comment-related schema change events for CDC schema evolution

apicdcddldiscussionfeaturehelp wanted

apache/seatunnel #10,776 opened Apr 16, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

5 comments0 reactions0 assignees

Open

[Discuss] Discuss adding VARIANT SqlType for semi-structured data

discussionfeaturehelp wanted

apache/seatunnel #10,774 opened Apr 16, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

1 comment0 reactions0 assignees

Open

Custom Required Actions cannot be removed via PUT /admin/realms/{realm}/users/{id}

area/admin/apihelp wantedkind/bugpriority/normalstatus/auto-bumpstatus/auto-expireteam/core-protocolsteam/core-shared

keycloak/keycloak #48,144 opened Apr 16, 2026 · Java · 34,398 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments2 reactions0 assignees

Open

place "Garbage Collector" profile track near system stats

P4help wantedteam-Remote-Exectype: feature request

bazelbuild/bazel #29,310 opened Apr 15, 2026 · Java · 25,384 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments0 reactions0 assignees

Open

[2.x] `reboot` causes sbt to exit

Bughelp wanted

sbt/sbt #9,095 opened Apr 15, 2026 · Scala · 4,928 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

Open

App stuck on ignore

Help Wanted

MuntashirAkon/AppManager #1,956 opened Apr 15, 2026 · Java · 3,673 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

[Discussion][Zeta] Reduce historical job runtime info stored in IMap / StateStore with differentiated retention

Zetadiscussionhelp wantedimprove

apache/seatunnel #10,767 opened Apr 15, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

2 comments1 reaction0 assignees

Open

[Feature] When will Dubbo be compatible with Spring Boot 4?

help wanted

apache/dubbo #16,214 opened Apr 15, 2026 · Java · 41,524 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments0 reactions0 assignees

Open

[OID4VCI] c_nonce Replay

area/oid4vchelp wantedkind/bugpriority/normalstatus/auto-bumpteam/core-protocols

keycloak/keycloak #48,043 opened Apr 14, 2026 · Java · 34,398 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

3 comments1 reaction1 assignee

Open

[Bug] [Worker] File parameter transfer feature is broken

bughelp wanted

apache/dolphinscheduler #18,166 opened Apr 13, 2026 · Java · 11,659 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

6 comments0 reactions0 assignees

Open

Write an OpenRewrite rule to migrate to Rhino 2.0

good first issue

mozilla/rhino #2,363 opened Apr 12, 2026 · JavaScript · 3,728 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

2 comments0 reactions0 assignees

Open

[Feature]: Support outputSchema for MCP tools

area/core/toolenhancementhelp wanted

agentscope-ai/agentscope-java #1,204 opened Apr 12, 2026 · Java · 3,253 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments0 reactions0 assignees

Open

[Umbrella][Feature][Connector] Support New Connectors — Claim & Tracking

First-time contributorgood first issuehelp wanted

apache/seatunnel #10,753 opened Apr 12, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

10 comments0 reactions0 assignees

Open

CORS Header missing when accessing /account endpoint with an expired session

area/account/apihelp wantedkind/bugpriority/lowstatus/auto-bumpstatus/auto-expireteam/core-clientsteam/core-shared

keycloak/keycloak #47,934 opened Apr 10, 2026 · Java · 34,398 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment3 reactions0 assignees

Open

Core: Stream DV Puffin rewrite in RewriteTablePathUtil to reduce memory pressure

coregood first issueimprovement

apache/iceberg #15,924 opened Apr 9, 2026 · Java · 5,146 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

2 comments0 reactions1 assignee

Open

[Bug] List<Byte>, List<Short>, Map<String, Byte> deserialized as List<Integer>, Map<String, Integer> on provider side

help wanted

apache/dubbo #16,197 opened Apr 9, 2026 · Java · 41,524 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

java

Loading results...

Open

SecurityMigrationExecutor and SystemIndexMigrationExecutor should not be persistent tasks

:Distributed/DistributedTeam:Distributedgood first issue

elastic/elasticsearch #146,662 opened Apr 17, 2026 · Java · 76,700 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

5 comments0 reactions0 assignees

Open

[OID4VCI] Issuance with Authorization Code Flow assumes same client_id for offer creation and redemption

area/oid4vchelp wantedkind/bugpriority/normalstatus/auto-bumpstatus/auto-expireteam/core-protocols

keycloak/keycloak #48,188 opened Apr 17, 2026 · Java · 34,398 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

7 comments1 reaction0 assignees

Open

[Improve][E2E] Make SeaTunnelContainer reusable across test classes to speed up E2E tests

Testhelp wantedimprove

apache/seatunnel #10,784 opened Apr 17, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

2 comments0 reactions1 assignee

Open

[Feature][Connector-V2][PostgreSQL-CDC] Support schema evolution

cdcconnectors-v2ddlfeaturehelp wanted

apache/seatunnel #10,777 opened Apr 16, 2026 · Java · 6,897 stars

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

1 comment0 reactions1 assignee

Open

[Feature][CDC][DDL] Support comment-related schema change events for CDC schema evolution

apicdcddldiscussionfeaturehelp wanted

apache/seatunnel #10,776 opened Apr 16, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

5 comments0 reactions0 assignees

Open

[Discuss] Discuss adding VARIANT SqlType for semi-structured data

discussionfeaturehelp wanted

apache/seatunnel #10,774 opened Apr 16, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

1 comment0 reactions0 assignees

Open

Custom Required Actions cannot be removed via PUT /admin/realms/{realm}/users/{id}

area/admin/apihelp wantedkind/bugpriority/normalstatus/auto-bumpstatus/auto-expireteam/core-protocolsteam/core-shared

keycloak/keycloak #48,144 opened Apr 16, 2026 · Java · 34,398 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments2 reactions0 assignees

Open

place "Garbage Collector" profile track near system stats

P4help wantedteam-Remote-Exectype: feature request

bazelbuild/bazel #29,310 opened Apr 15, 2026 · Java · 25,384 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments0 reactions0 assignees

Open

[2.x] `reboot` causes sbt to exit

Bughelp wanted

sbt/sbt #9,095 opened Apr 15, 2026 · Scala · 4,928 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

Open

App stuck on ignore

Help Wanted

MuntashirAkon/AppManager #1,956 opened Apr 15, 2026 · Java · 3,673 stars

Why recommendedNo assignee yet · No comments yet

No assignee yetNo comments yetHas a beginner-friendly labelContributing guide available

0 comments0 reactions0 assignees

Open

[Discussion][Zeta] Reduce historical job runtime info stored in IMap / StateStore with differentiated retention

Zetadiscussionhelp wantedimprove

apache/seatunnel #10,767 opened Apr 15, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

2 comments1 reaction0 assignees

Open

[Feature] When will Dubbo be compatible with Spring Boot 4?

help wanted

apache/dubbo #16,214 opened Apr 15, 2026 · Java · 41,524 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments0 reactions0 assignees

Open

[OID4VCI] c_nonce Replay

area/oid4vchelp wantedkind/bugpriority/normalstatus/auto-bumpteam/core-protocols

keycloak/keycloak #48,043 opened Apr 14, 2026 · Java · 34,398 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

3 comments1 reaction1 assignee

Open

[Bug] [Worker] File parameter transfer feature is broken

bughelp wanted

apache/dolphinscheduler #18,166 opened Apr 13, 2026 · Java · 11,659 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

6 comments0 reactions0 assignees

Open

Write an OpenRewrite rule to migrate to Rhino 2.0

good first issue

mozilla/rhino #2,363 opened Apr 12, 2026 · JavaScript · 3,728 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

2 comments0 reactions0 assignees

Open

[Feature]: Support outputSchema for MCP tools

area/core/toolenhancementhelp wanted

agentscope-ai/agentscope-java #1,204 opened Apr 12, 2026 · Java · 3,253 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

2 comments0 reactions0 assignees

Open

[Umbrella][Feature][Connector] Support New Connectors — Claim & Tracking

First-time contributorgood first issuehelp wanted

apache/seatunnel #10,753 opened Apr 12, 2026 · Java · 6,897 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

10 comments0 reactions0 assignees

Open

CORS Header missing when accessing /account endpoint with an expired session

area/account/apihelp wantedkind/bugpriority/lowstatus/auto-bumpstatus/auto-expireteam/core-clientsteam/core-shared

keycloak/keycloak #47,934 opened Apr 10, 2026 · Java · 34,398 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment3 reactions0 assignees

Open

Core: Stream DV Puffin rewrite in RewriteTablePathUtil to reduce memory pressure

coregood first issueimprovement

apache/iceberg #15,924 opened Apr 9, 2026 · Java · 5,146 stars

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

2 comments0 reactions1 assignee

Open

[Bug] List<Byte>, List<Short>, Map<String, Byte> deserialized as List<Integer>, Map<String, Integer> on provider side

help wanted

apache/dubbo #16,197 opened Apr 9, 2026 · Java · 41,524 stars

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

1 comment0 reactions0 assignees

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Java Good First Issues