apache / apache/grails-core

Update documentation for Java 25

Open Beginner friendly
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relates-to: documentation weekly-action-item
Dominant language
Groovy
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Description

### Issue description

It has been discovered that java 25 uses more off heap memory and that the metaspace is now unbounded while it previously was limited to 12mb. This ticket is to add recommended settings for java 25 and explain these requirements (possibly in the upgrade guide)

Contributor guide

Open the contributing guide

Research direction

Start by locating the upgrade guide and existing Java configuration documentation in the repository. Document recommended settings for Java 25 and explain its increased off-heap memory use and unbounded metaspace; the work is done when users can find and understand the required settings.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
documentation
Issue type
Documentation
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
68/100

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