Java Good First Issues

Java

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Average annotated difficulty: 2.5/5 across 5,028 issues.
75% of 5,028 time estimates are one day or less.

Closed

[Bug] [UI] The task home page does not display the rate indicators, but they are clearly shown.

buggood first issuehelp wanted

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

apache / seatunnel · #10547 · Feb 28, 2026 · Java · 6,897 stars

16 comments0 reactions0 assignees

Closed

[Docs][Core] Add Javadoc to TaskExecutionService inner classes (cooperative/blocking execution model)

help wanted

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

apache / seatunnel · #10546 · Feb 28, 2026 · Java · 6,897 stars

2 comments0 reactions0 assignees

Open

[Docs][Core] Add Javadoc to CheckpointCoordinator (checkpoint state machine)

help wanted

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

apache / seatunnel · #10545 · Feb 28, 2026 · Java · 6,897 stars

3 comments0 reactions0 assignees

Closed

[Docs][Core] Add Javadoc to CoordinatorService (scheduling and HA methods)

help wanted

Why recommendedHas a beginner-friendly label

Has a beginner-friendly label

apache / seatunnel · #10544 · Feb 28, 2026 · Java · 6,897 stars

3 comments0 reactions1 assignee

Open

[Docs][Core] Add Javadoc to MultiTableWriterRunnable

help wanted

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

apache / seatunnel · #10538 · Feb 28, 2026 · Java · 6,897 stars

1 comment0 reactions0 assignees

Open

[Docs][Core] Add Javadoc to key lifecycle, checkpoint, and multi-table methods across seatunnel-api and seatunnel-engine

help wanted

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

apache / seatunnel · #10533 · Feb 28, 2026 · Java · 6,897 stars

2 comments1 reaction0 assignees

Open

[FEATURE] Add Firefox Beta & Nightly to Search Bar

feature-requestgood first issuestatus: reviewed

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

LawnchairLauncher / lawnchair · #6439 · Feb 28, 2026 · Java · 7,962 stars

2 comments3 reactions0 assignees

Open

/admin/realms/{realm}/users is slow for “view-only” callers due to per-user group traversal in access checks (N+1 USER_GROUP_MEMBERSHIP)

area/organizationshelp wantedkind/enhancementpriority/normalstatus/auto-bumpteam/core-iam

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

keycloak / keycloak · #46682 · Feb 27, 2026 · Java · 34,398 stars

4 comments2 reactions1 assignee

Open

Partial realm import with ifResourceExists=OVERWRITE delete service-account-* user of clients

area/import-exporthelp wantedkind/bugpriority/normalstatus/auto-bumpstatus/auto-expireteam/core-clientsteam/core-shared

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

keycloak / keycloak · #46674 · Feb 27, 2026 · Java · 34,398 stars

1 comment2 reactions0 assignees

Open

Add ZGC Option for MeowIce Flags

enhancementhelp wanted

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly label

itzg / docker-minecraft-server · #3954 · Feb 27, 2026 · Shell · 13,694 stars

5 comments0 reactions0 assignees

Closed

In some instances 'lastFailure' is missing from user brute force status

area/authenticationhelp wantedkind/bugpriority/normalstatus/auto-bumpstatus/auto-expireteam/core-clients

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

keycloak / keycloak · #46636 · Feb 26, 2026 · Java · 34,398 stars

1 comment1 reaction1 assignee

Closed

Brute force detection counter does not work properly

area/authenticationhelp wantedkind/bugpriority/normalstatus/auto-bumpstatus/auto-expireteam/core-clients

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

keycloak / keycloak · #46634 · Feb 26, 2026 · Java · 34,398 stars

2 comments1 reaction0 assignees

Open

Bazel hangs when `--execution_log_compact_file` and `--build_event_binary_file` both point to named pipes

P3help wantedteam-Local-Exectype: feature request

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

bazelbuild / bazel · #28800 · Feb 25, 2026 · Java · 25,384 stars

3 comments0 reactions0 assignees

Open

Integration test Kafka instrumentation against latest minor version

help wantedtype: task

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelRepository active this monthContributing guide available

micrometer-metrics / micrometer · #7233 · Feb 25, 2026 · Java · 4,882 stars

2 comments0 reactions0 assignees

Open

[Feature]: Support auto tool scan and registration from Spring Context.

area/ext/spring-bootenhancementhelp wanted

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

agentscope-ai / agentscope-java · #821 · Feb 25, 2026 · Java · 3,253 stars

1 comment0 reactions1 assignee

Open

Clustered LDAP: Component update triggers concurrent KEYCLOAK_GROUP inserts causing duplicate key violations

area/ldaphelp wantedkind/bugpriority/normalstatus/auto-bumpteam/core-iam

Why recommendedHas a beginner-friendly label · Contributing guide available

Has a beginner-friendly labelContributing guide available

keycloak / keycloak · #46575 · Feb 24, 2026 · Java · 34,398 stars

4 comments5 reactions1 assignee

Closed

metric process_cpu_usage is used in the Grafana dashboard, but not documented

area/observabilityhelp wantedkind/bugpriority/lowstatus/auto-bumpstatus/auto-expireteam/cloud-nativeteam/production-readiness

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

keycloak / keycloak · #46546 · Feb 23, 2026 · Java · 34,398 stars

7 comments1 reaction0 assignees

Open

Test SQL Server handling of decimal type with negative scale

good first issuesqlserver

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

trinodb / trino · #28418 · Feb 23, 2026 · Java · 9,113 stars

8 comments0 reactions0 assignees

Open

Test Ignite handling of decimal type with negative scale

good first issueignite

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

trinodb / trino · #28416 · Feb 23, 2026 · Java · 9,113 stars

2 comments0 reactions0 assignees

Closed

SAML Client Signing Certificate gets overwitten

area/admin/uiarea/samlhelp wantedkind/bugpriority/lowstatus/auto-bumpstatus/auto-expireteam/core-clientsteam/core-shared

Why recommendedNo assignee yet · Has a beginner-friendly label

No assignee yetHas a beginner-friendly labelContributing guide available

keycloak / keycloak · #46505 · Feb 21, 2026 · Java · 34,398 stars

3 comments1 reaction0 assignees

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