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https://issues.apache.org/jira/browse/GROOVY-12142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18105197#comment-18105197
]
ASF GitHub Bot commented on GROOVY-12142:
-----------------------------------------
codecov-commenter commented on PR #2798:
URL: https://github.com/apache/groovy/pull/2798#issuecomment-5313222479
##
[Codecov](https://app.codecov.io/gh/apache/groovy/pull/2798?dropdown=coverage&src=pr&el=h1&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache)
Report
:x: Patch coverage is `78.94737%` with `4 lines` in your changes missing
coverage. Please review.
:white_check_mark: Project coverage is 70.1412%. Comparing base
([`142130d`](https://app.codecov.io/gh/apache/groovy/commit/142130d38010187a509466c9beafbcbd46fa6100?dropdown=coverage&el=desc&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache))
to head
([`7442977`](https://app.codecov.io/gh/apache/groovy/commit/744297765d7df06801439598eb679cc9e3b16914?dropdown=coverage&el=desc&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache)).
:warning: Report is 12 commits behind head on master.
| [Files with missing
lines](https://app.codecov.io/gh/apache/groovy/pull/2798?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache)
| Patch % | Lines |
|---|---|---|
|
[...aus/groovy/reflection/GroovyClassValueFactory.java](https://app.codecov.io/gh/apache/groovy/pull/2798?src=pr&el=tree&filepath=src%2Fmain%2Fjava%2Forg%2Fcodehaus%2Fgroovy%2Freflection%2FGroovyClassValueFactory.java&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache#diff-c3JjL21haW4vamF2YS9vcmcvY29kZWhhdXMvZ3Jvb3Z5L3JlZmxlY3Rpb24vR3Jvb3Z5Q2xhc3NWYWx1ZUZhY3RvcnkuamF2YQ==)
| 50.0000% | [1 Missing and 1 partial :warning:
](https://app.codecov.io/gh/apache/groovy/pull/2798?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache)
|
|
[.../parser/antlr4/internal/atnmanager/AtnManager.java](https://app.codecov.io/gh/apache/groovy/pull/2798?src=pr&el=tree&filepath=src%2Fmain%2Fjava%2Forg%2Fapache%2Fgroovy%2Fparser%2Fantlr4%2Finternal%2Fatnmanager%2FAtnManager.java&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache#diff-c3JjL21haW4vamF2YS9vcmcvYXBhY2hlL2dyb292eS9wYXJzZXIvYW50bHI0L2ludGVybmFsL2F0bm1hbmFnZXIvQXRuTWFuYWdlci5qYXZh)
| 85.7143% | [0 Missing and 1 partial :warning:
](https://app.codecov.io/gh/apache/groovy/pull/2798?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache)
|
|
[...codehaus/groovy/vmplugin/v8/CacheableCallSite.java](https://app.codecov.io/gh/apache/groovy/pull/2798?src=pr&el=tree&filepath=src%2Fmain%2Fjava%2Forg%2Fcodehaus%2Fgroovy%2Fvmplugin%2Fv8%2FCacheableCallSite.java&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache#diff-c3JjL21haW4vamF2YS9vcmcvY29kZWhhdXMvZ3Jvb3Z5L3ZtcGx1Z2luL3Y4L0NhY2hlYWJsZUNhbGxTaXRlLmphdmE=)
| 0.0000% | [0 Missing and 1 partial :warning:
](https://app.codecov.io/gh/apache/groovy/pull/2798?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache)
|
<details><summary>Additional details and impacted files</summary>
[](https://app.codecov.io/gh/apache/groovy/pull/2798?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache)
```diff
@@ Coverage Diff @@
## master #2798 +/- ##
==================================================
+ Coverage 70.1064% 70.1412% +0.0348%
- Complexity 35774 35819 +45
==================================================
Files 1561 1563 +2
Lines 132373 132390 +17
Branches 24332 24353 +21
==================================================
+ Hits 92802 92860 +58
+ Misses 31170 31133 -37
+ Partials 8401 8397 -4
```
| [Files with missing
lines](https://app.codecov.io/gh/apache/groovy/pull/2798?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache)
| Coverage Δ | |
|---|---|---|
|
[...us/groovy/reflection/GroovyClassValueMapBased.java](https://app.codecov.io/gh/apache/groovy/pull/2798?src=pr&el=tree&filepath=src%2Fmain%2Fjava%2Forg%2Fcodehaus%2Fgroovy%2Freflection%2FGroovyClassValueMapBased.java&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache#diff-c3JjL21haW4vamF2YS9vcmcvY29kZWhhdXMvZ3Jvb3Z5L3JlZmxlY3Rpb24vR3Jvb3Z5Q2xhc3NWYWx1ZU1hcEJhc2VkLmphdmE=)
| `100.0000% <100.0000%> (ø)` | |
|
[.../parser/antlr4/internal/atnmanager/AtnManager.java](https://app.codecov.io/gh/apache/groovy/pull/2798?src=pr&el=tree&filepath=src%2Fmain%2Fjava%2Forg%2Fapache%2Fgroovy%2Fparser%2Fantlr4%2Finternal%2Fatnmanager%2FAtnManager.java&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache#diff-c3JjL21haW4vamF2YS9vcmcvYXBhY2hlL2dyb292eS9wYXJzZXIvYW50bHI0L2ludGVybmFsL2F0bm1hbmFnZXIvQXRuTWFuYWdlci5qYXZh)
| `71.7949% <85.7143%> (+17.9487%)` | :arrow_up: |
|
[...codehaus/groovy/vmplugin/v8/CacheableCallSite.java](https://app.codecov.io/gh/apache/groovy/pull/2798?src=pr&el=tree&filepath=src%2Fmain%2Fjava%2Forg%2Fcodehaus%2Fgroovy%2Fvmplugin%2Fv8%2FCacheableCallSite.java&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache#diff-c3JjL21haW4vamF2YS9vcmcvY29kZWhhdXMvZ3Jvb3Z5L3ZtcGx1Z2luL3Y4L0NhY2hlYWJsZUNhbGxTaXRlLmphdmE=)
| `96.6667% <0.0000%> (+19.1667%)` | :arrow_up: |
|
[...aus/groovy/reflection/GroovyClassValueFactory.java](https://app.codecov.io/gh/apache/groovy/pull/2798?src=pr&el=tree&filepath=src%2Fmain%2Fjava%2Forg%2Fcodehaus%2Fgroovy%2Freflection%2FGroovyClassValueFactory.java&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache#diff-c3JjL21haW4vamF2YS9vcmcvY29kZWhhdXMvZ3Jvb3Z5L3JlZmxlY3Rpb24vR3Jvb3Z5Q2xhc3NWYWx1ZUZhY3RvcnkuamF2YQ==)
| `40.0000% <50.0000%> (-10.0000%)` | :arrow_down: |
... and [14 files with indirect coverage
changes](https://app.codecov.io/gh/apache/groovy/pull/2798/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=apache)
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</details>
> Metaspace memory leak with parallel deployments on Tomcat
> ---------------------------------------------------------
>
> Key: GROOVY-12142
> URL: https://issues.apache.org/jira/browse/GROOVY-12142
> Project: Groovy
> Issue Type: Bug
> Affects Versions: 4.0.24, 4.0.29, 5.0.8, 5.1.0, 6.0.0-beta-2
> Environment: Tomcat: 10.1.55
> openjdk version "17.0.19" 2026-04-21 LTS
> OpenJDK Runtime Environment (Red_Hat-17.0.19.0.10-1) (build 17.0.19+10-LTS)
> OpenJDK 64-Bit Server VM (Red_Hat-17.0.19.0.10-1) (build 17.0.19+10-LTS,
> mixed mode, sharing)
> Reporter: Jan Gosmann
> Assignee: Paul King
> Priority: Major
> Attachments: Screenshot 2026-07-09 at 09.46.46.png, spring-test.tar.gz
>
>
> We are using [Tomcat parallel
> deployments|https://tomcat.apache.org/tomcat-10.0-doc/config/context.html#Parallel_deployment]
> to achieve downtimeless deployments. However, we with each new deployment
> the metaspace grows (see attached image). Even after undeploying the old
> version it does not shrink. If we configure a maximum metaspace size, new
> parallel deployments fail with an out-of-memory error.
> I was able to reproduce this with a very simple Spring Boot application
> (attached). As long as I had no Groovy in there, metaspace was reclaimed
> before hitting the maximum on new deploys. After introducing Groovy,
> metaspace is no longer reclaimed.
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