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https://issues.apache.org/jira/browse/OAK-12204?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Rishabh Daim resolved OAK-12204.
--------------------------------
Fix Version/s: 2.2.0
Resolution: Fixed
> FullGC: prevent NPE in recommendations when fullGC is enabled and collect
> limit is exceeded
> -------------------------------------------------------------------------------------------
>
> Key: OAK-12204
> URL: https://issues.apache.org/jira/browse/OAK-12204
> Project: Jackrabbit Oak
> Issue Type: Bug
> Reporter: Rishabh Daim
> Assignee: Rishabh Daim
> Priority: Major
> Fix For: 2.2.0
>
>
> Stack Trace
> {code:java}
> 06.05.2026 15:39:54.450 WARN
> [sling-oak-5-org.apache.jackrabbit.oak.plugins.document.DocumentNodeStoreService${color}RevisionGCJob]
> org.apache.jackrabbit.oak.plugins.document.VersionGarbageCollector
> Error occurred while executing the Version Garbage Collector
> java.lang.NullPointerException: null
> at java.base/java.util.Objects.requireNonNull(Objects.java:233)
> at
> java.base/java.util.ImmutableCollections${color}MapN.<init>(ImmutableCollections.java:1193)
>
> at java.base/java.util.Map.of(Map.java:1385)
> at
> org.apache.jackrabbit.oak.plugins.document.VersionGCRecommendations.evaluate(VersionGCRecommendations.java:319)
> [org.apache.jackrabbit.oak-store-document:2.0.0.T20260429114506-681e702]
> at
> org.apache.jackrabbit.oak.plugins.document.VersionGarbageCollector${color}GCJob.gc(VersionGarbageCollector.java:939)
> [org.apache.jackrabbit.oak-store-document:2.0.0.T20260429114506-681e702]
> at
> org.apache.jackrabbit.oak.plugins.document.VersionGarbageCollector${color}GCJob.run(VersionGarbageCollector.java:873)
> [org.apache.jackrabbit.oak-store-document:2.0.0.T20260429114506-681e702]
> at
> org.apache.jackrabbit.oak.plugins.document.VersionGarbageCollector.gc(VersionGarbageCollector.java:425)
> [org.apache.jackrabbit.oak-store-document:2.0.0.T20260429114506-681e702]
> at
> org.apache.jackrabbit.oak.plugins.document.DocumentNodeStoreService${color}RevisionGCJob.run(DocumentNodeStoreService.java:1105)
> [org.apache.jackrabbit.oak-store-document:2.0.0.T20260429114506-681e702]
> at
> org.apache.sling.commons.scheduler.impl.QuartzJobExecutor.execute(QuartzJobExecutor.java:349)
> [org.apache.sling.commons.scheduler:2.7.14]
> at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
> [org.apache.sling.commons.scheduler:2.7.14]
> at
> org.apache.sling.commons.scheduler.impl.QuartzThreadPool.lambda${color}runInThread$0(QuartzThreadPool.java:83)
> [org.apache.sling.commons.scheduler:2.7.14]
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor${color}Worker.run(ThreadPoolExecutor.java:642)
> at java.base/java.lang.Thread.run(Thread.java:1583)
> {code}
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