micronaut-projects/micronaut-core

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Micronaut Application Framework

Stars: 6.4k
Forks: 1.2k
Open beginner issues: 0
Indexed issues: 416
Avg merge: 1d 6h
Merged PRs (30d): 222

Dominant language: Java
License: Apache-2.0
Last GitHub push: Sep 17, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted

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416 open issues indexed

Regression of #4864: server abandons a rejected oversized request body without draining it, hanging the client's write indefinitely Open

type: regression

Difficulty 4/5 3-5 days Newbie friendliness 72/100

micronaut-projects/micronaut-core#13243 · 1 comment · Opened Sep 17, 2026
Validation annotations on services requires `@Introspected` Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

micronaut-projects/micronaut-core#13202 · 2 comments · Opened Sep 16, 2026
Remove netty workaround Open

Difficulty 3/5 1-2 days Newbie friendliness 58/100

micronaut-projects/micronaut-core#13189 · Opened Sep 15, 2026
Remove LoomSupport and LoomSupport.LoomCondition Open

status: next major version type: removed

Difficulty 4/5 3-5 days Newbie friendliness 55/100

micronaut-projects/micronaut-core#13119 · 1 comment · Opened Sep 11, 2026
Update all Micronaut Platform 5.2 projects to Micronaut Core 5.2 Open

relates-to: versioning status: in progress type: task

Difficulty 5/5 Over a week Newbie friendliness 20/100

micronaut-projects/micronaut-core#13110 · 5 comments · Opened Sep 10, 2026
systemd-notify support Open

relates-to: infrastructure status: under consideration type: enhancement

micronaut-projects/micronaut-core#13093 · 1 comment · 1 assignee · Opened Sep 10, 2026
Groovy processor records annotation metadata differently from the Java processor (type-use annotations on return types, annotation-typed defaults) Open

lang: groovy status: validated type: bug

Difficulty 4/5 3-5 days Newbie friendliness 65/100

micronaut-projects/micronaut-core#13017 · 1 comment · Opened Sep 5, 2026
APIs for properly zeroing specific network memory in Netty Buffer. Open

relates-to: security status: under consideration type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

micronaut-projects/micronaut-core#12944 · 1 comment · Opened Aug 31, 2026
DelayedExecutionFlowImpl memory leak persists in 4.10.x — defuse() returns shared flow on keep-alive connections Open

info: workaround available relates-to: http-server status: awaiting validation type: bug

Difficulty 4/5 3-5 days Newbie friendliness 55/100

micronaut-projects/micronaut-core#12940 · 6 comments · Opened Aug 31, 2026
Optionally apply a JEP-290 ObjectInputFilter in JdkSerializer Open

relates-to: security status: under consideration type: enhancement

Difficulty 3/5 1-2 days Newbie friendliness 66/100

micronaut-projects/micronaut-core#12861 · 2 comments · Opened Aug 3, 2026
JsonMapper throws JacksonException Open

relates-to: jackson status: pr submitted type: bug type: regression

micronaut-projects/micronaut-core#12749 · 1 comment · 1 assignee · Opened Jun 25, 2026
File responses do not handle bytes=0-0 or suffix ranges correctly Open

relates-to: http-server status: validated type: bug type: regression

Difficulty 3/5 1-2 days Newbie friendliness 58/100

micronaut-projects/micronaut-core#12731 · 1 comment · Opened Jun 18, 2026
Unify argument binders between server implementations Open

relates-to: http-server status: under consideration type: enhancement

micronaut-projects/micronaut-core#12682 · 1 comment · 1 assignee · Opened May 21, 2026
NettyHttpClient ReadTimeouts don't supply stacktrace Open

relates-to: http-client status: validated type: bug

Difficulty 3/5 1-2 days Newbie friendliness 58/100

micronaut-projects/micronaut-core#12655 · 3 comments · Opened May 3, 2026
Possible Netty resource leak with StreamingFileUpload in MultipartBody Open

relates-to: http-server status: awaiting validation type: bug

Difficulty 3/5 1-2 days Newbie friendliness 68/100

micronaut-projects/micronaut-core#12630 · 2 comments · Opened Apr 22, 2026
Inconsistency between API and usage of HttpClientConfiguration#getHttp2Configuration Open

relates-to: http-client status: pr submitted type: bug

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

micronaut-projects/micronaut-core#12619 · 1 comment · 2 reactions · Opened Apr 20, 2026
MultiplexServerHandler for HTTP/3 Open

relates-to: http-server status: under consideration type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 55/100

micronaut-projects/micronaut-core#12611 · 1 comment · Opened Apr 14, 2026
ServerRequestContext.currentRequest() returns empty optional Open

relates-to: http-server status: awaiting feedback type: bug

micronaut-projects/micronaut-core#12606 · 2 comments · 1 assignee · Opened Apr 9, 2026
Getting a io.micronaut.http.exceptions.UriSyntaxException when trying to build a URI with a url which have {} in the path Open

status: pr submitted type: bug

Difficulty 3/5 1-2 days Newbie friendliness 67/100

micronaut-projects/micronaut-core#12578 · 1 comment · Opened Mar 27, 2026
Provide metadata-safe bean-definition enumeration for non-running context validation Open

status: under consideration type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 42/100

micronaut-projects/micronaut-core#12560 · 1 comment · Opened Mar 23, 2026
KSP task over 5 times slower than KAPT Open

lang: kotlin status: awaiting feedback type: bug type: regression

Difficulty 4/5 3-5 days Newbie friendliness 48/100

micronaut-projects/micronaut-core#12553 · 3 comments · Opened Mar 22, 2026
MN5: Kotlin inject can't introspect java records correctly Open

lang: kotlin status: pr submitted type: bug type: regression

micronaut-projects/micronaut-core#12504 · 2 comments · 1 reaction · 2 assignees · Opened Mar 17, 2026
Configuration property binding fails for `Map<Enum, CustomClass>` Open

lang: kotlin status: validated type: bug

Difficulty 4/5 3-5 days Newbie friendliness 52/100

micronaut-projects/micronaut-core#12477 · 1 comment · 1 reaction · Opened Mar 12, 2026
Calling a "RequestScoped" bean after a suspending function call throws an Exception "No request present" Open

relates-to: http-client status: validated type: bug type: regression

Difficulty 4/5 3-5 days Newbie friendliness 48/100

micronaut-projects/micronaut-core#12399 · 3 comments · 2 reactions · Opened Feb 19, 2026
Investigate SslRefreshSpec failures Open

relates-to: http-server status: pr submitted type: bug

Difficulty 3/5 1-2 days Newbie friendliness 25/100

micronaut-projects/micronaut-core#12381 · 2 comments · Opened Feb 5, 2026
ResourceLoader::getResource does not work with directories Open

status: under consideration type: enhancement

micronaut-projects/micronaut-core#12370 · 2 comments · 1 assignee · Opened Jan 29, 2026
Remove ByteBody.split() Open

info: good first issue status: pr submitted type: breaking

micronaut-projects/micronaut-core#12328 · 3 comments · 1 assignee · Opened Jan 12, 2026
Different timeout settings per request with HttpClient Open

relates-to: http-client status: under consideration type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

micronaut-projects/micronaut-core#12303 · 3 comments · Opened Jan 1, 2026
Explicit body writer on HttpResponse is ignored Open

relates-to: http-server status: validated type: bug

Difficulty 3/5 1-2 days Newbie friendliness 68/100

micronaut-projects/micronaut-core#12299 · 3 comments · Opened Dec 29, 2025
Child (hierarchical) injector scope Open

status: under consideration type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

micronaut-projects/micronaut-core#12285 · 1 comment · Opened Dec 20, 2025
introspection fails when class implements same field from multiple interfaces Open

lang: kotlin status: pr submitted type: bug

Difficulty 4/5 3-5 days Newbie friendliness 62/100

micronaut-projects/micronaut-core#12262 · 4 comments · Opened Dec 11, 2025
Cannot create bean with SequencedSet parameter Open

status: pr submitted type: bug

Difficulty 3/5 1-2 days Newbie friendliness 68/100

micronaut-projects/micronaut-core#12232 · 1 comment · Opened Dec 1, 2025
Failure to inject a suspend lambda bean Open

lang: kotlin status: pr submitted type: bug

Difficulty 4/5 3-5 days Newbie friendliness 55/100

micronaut-projects/micronaut-core#12226 · 3 comments · Opened Nov 27, 2025
Remove or deprecate TaskExecutors.BLOCKING Open

status: next major version type: task

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

micronaut-projects/micronaut-core#12217 · 1 comment · Opened Nov 24, 2025
Remove HttpAttributes Open

status: next major version type: breaking

micronaut-projects/micronaut-core#12215 · 3 comments · 1 assignee · Opened Nov 24, 2025
Remove ByteBuffer Open

status: next major version type: breaking

Difficulty 4/5 3-5 days Newbie friendliness 45/100

micronaut-projects/micronaut-core#12211 · 1 comment · Opened Nov 21, 2025
Change thread-selection to apply to all code, not just controllers Open

relates-to: http-server status: next major version type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 45/100

micronaut-projects/micronaut-core#12206 · 1 comment · 3 reactions · Opened Nov 20, 2025
@Pattern bean validation should not be applied to a null query parameter annotated with @Nullable Open

relates-to: validation status: pr submitted type: bug type: regression

Difficulty 3/5 1-2 days Newbie friendliness 70/100

micronaut-projects/micronaut-core#12203 · 1 comment · Opened Nov 19, 2025
HTTP client should support connecting to UNIX domain sockets Open

relates-to: http-client status: under consideration type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 55/100

micronaut-projects/micronaut-core#12201 · 3 comments · Opened Nov 19, 2025
Rename HttpClient.create methods Open

status: under consideration type: breaking

Difficulty 3/5 1-2 days Newbie friendliness 48/100

micronaut-projects/micronaut-core#12182 · 2 comments · Opened Nov 13, 2025
@EventListener methods are not invoked in bean order Open

status: validated type: bug

Difficulty 4/5 3-5 days Newbie friendliness 55/100

micronaut-projects/micronaut-core#12129 · 1 comment · 1 reaction · Opened Oct 15, 2025
`@ConfigurationProperties` no autocompletion for application.yml with Kotlin2 and KSP Open

lang: kotlin status: awaiting third-party type: bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

micronaut-projects/micronaut-core#12082 · 2 comments · Opened Oct 1, 2025
Move to single event loop by default Open

status: next major version type: breaking type: enhancement

micronaut-projects/micronaut-core#12065 · 1 comment · 1 assignee · Opened Sep 25, 2025
Need to improve api versioning Open

status: under consideration type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

micronaut-projects/micronaut-core#12060 · 1 comment · Opened Sep 22, 2025
Context Propagation breaks @RequestScope in DiscoveryClient, after upgrading to MN 4.X Open

relates-to: http-client status: validated type: bug type: regression

Difficulty 4/5 3-5 days Newbie friendliness 52/100

micronaut-projects/micronaut-core#12055 · 1 comment · Opened Sep 18, 2025
Change SnakeYAML dependency to snakeyaml-engine Open

status: awaiting third-party type: enhancement

Difficulty 3/5 1-2 days Newbie friendliness 62/100

micronaut-projects/micronaut-core#12037 · 2 comments · Opened Sep 8, 2025
Default order of filter methods Open

status: under consideration type: breaking type: enhancement

Difficulty 3/5 1-2 days Newbie friendliness 68/100

micronaut-projects/micronaut-core#12019 · 2 comments · Opened Sep 1, 2025
Feature Request: Support for Functional Endpoint Definitions in Micronaut Open

status: under consideration type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

micronaut-projects/micronaut-core#12017 · 7 comments · 1 reaction · Opened Aug 31, 2025
Extract internal writers , builders from `core-processor` to a new dependency Open

status: under consideration type: task

Difficulty 4/5 3-5 days Newbie friendliness 45/100

micronaut-projects/micronaut-core#12012 · 1 comment · Opened Aug 28, 2025
Support for reading env from .env files Open

info: good first issue status: under consideration type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 45/100

micronaut-projects/micronaut-core#11994 · 3 comments · Opened Aug 16, 2025

micronaut-projects/micronaut-core

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