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https://issues.apache.org/jira/browse/KARAF-6480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17008077#comment-17008077
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ASF GitHub Bot commented on KARAF-6480:
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jbonofre commented on pull request #1042: [KARAF-6480] Remove deprecated perm
size JVM options
URL: https://github.com/apache/karaf/pull/1042
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> Permgen JVM options still being used on Windows
> -----------------------------------------------
>
> Key: KARAF-6480
> URL: https://issues.apache.org/jira/browse/KARAF-6480
> Project: Karaf
> Issue Type: Bug
> Components: karaf
> Affects Versions: 4.2.7
> Reporter: Richard Sands
> Assignee: Jean-Baptiste Onofré
> Priority: Minor
> Fix For: 4.3.0, 4.2.8
>
>
> The -XX:PermSize and -XX:MaxPermSize options are still being set in
> karaf.bat, but they are deprecated in Java 8+ and ignored in Java 11+.
> The equivalent parameters were handled for Linux in KARAF-3945.
> These JVM parameters are deprecated starting in Java 8 but are "still
> accepted and acted upon" through Java 10:
> [https://docs.oracle.com/javase/8/docs/technotes/tools/windows/java.html]
> [https://docs.oracle.com/javase/10/tools/java.htm]
> Starting in Java 11, these options are "accepted but ignored":
> [https://docs.oracle.com/en/java/javase/11/tools/java.html]
> And they are still accepted through the latest: Java 13.
> These options would ideally (for me) be replaced with the equivalent
> Metaspace parameters -XX:MetaspaceSize and -XX:MaxMetaspaceSize. More info:
> [https://blogs.oracle.com/poonam/about-g1-garbage-collector,-permanent-generation-and-metaspace]
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