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https://issues.apache.org/jira/browse/ARTEMIS-5790?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18042807#comment-18042807
 ] 

Justin Bertram edited comment on ARTEMIS-5790 at 12/4/25 2:52 PM:
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Have you tried using the [latest 
release|https://artemis.apache.org/components/artemis/download/]? Anything past 
2.44.0 is fully compatible with Java 25 as noted in [the 
documentation|https://activemq.apache.org/components/artemis/documentation/latest/versions.html#2-44-0].


was (Author: jbertram):
Have you tried using 2.44.0? It's fully compatible with Java 25 as noted in 
[the 
documentation|https://activemq.apache.org/components/artemis/documentation/latest/versions.html#2-44-0].

> Artemis broker calls deprecated netty method on initialization which fails 
> with exception on Java 25
> ----------------------------------------------------------------------------------------------------
>
>                 Key: ARTEMIS-5790
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-5790
>             Project: Artemis
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 2.43.0
>            Reporter: Andreas Baumgart
>            Priority: Major
>
> We are currently migrating from Spring Boot 3 to 4 on Java 25. Spring Boot 4 
> uses Artemis 2.43.0 and Netty 4.2.7.
> Our server runs with an embedded Artemis broker which now fails at startup 
> with the following exception: 
> {noformat}
> 04.12.2025 14:12:52.576  INFO 34508 --- [server] [           main] [          
>                       ]o.apache.activemq.artemis.core.server    : AMQ221013: 
> Using NIO Journal
> 04.12.2025 14:12:52.609  INFO 34508 --- [server] [           main] [          
>                       ]o.apache.activemq.artemis.core.server    : AMQ221057: 
> Global Max Size is being adjusted to 1/2 of the JVM max size (-Xmx). being 
> defined as 12868124672
> 04.12.2025 14:12:52.627  INFO 34508 --- [server] [           main] [          
>                       ]o.apache.activemq.artemis.core.server    : AMQ221043: 
> Protocol module found: [artemis-server]. Adding protocol support for: CORE
> 04.12.2025 14:12:52.628  INFO 34508 --- [server] [           main] [          
>                       ]o.apache.activemq.artemis.core.server    : AMQ221043: 
> Protocol module found: [artemis-openwire-protocol]. Adding protocol support 
> for: OPENWIRE
> 04.12.2025 14:12:52.628  INFO 34508 --- [server] [           main] [          
>                       ]o.apache.activemq.artemis.core.server    : AMQ221043: 
> Protocol module found: [artemis-openwire-protocol]. Adding protocol support 
> for: OPENWIRE
> 04.12.2025 14:12:52.684  INFO 34508 --- [server] [           main] [          
>                       ]o.apache.activemq.artemis.core.server    : AMQ221034: 
> Waiting indefinitely to obtain primary lock04.12.2025 14:12:52.684  INFO 
> 34508 --- [server] [           main] [                                
> ]o.apache.activemq.artemis.core.server    : AMQ221035: Primary Server 
> Obtained primary lock
> 04.12.2025 14:12:52.730 ERROR 34508 --- [server] [           main] [          
>                       ]o.apache.activemq.artemis.core.server    : AMQ224000: 
> Failure in initialisation
> java.lang.UnsupportedOperationException: Cannot clean arbitrary ByteBuffer 
> instances
>  at 
> io.netty.util.internal.CleanerJava25.freeDirectBuffer(CleanerJava25.java:177)
>  at 
> io.netty.util.internal.PlatformDependent.freeDirectBuffer(PlatformDependent.java:613)
>  at 
> org.apache.activemq.artemis.core.io.nio.NIOSequentialFileFactory.releaseDirectBuffer(NIOSequentialFileFactory.java:138)
>  at 
> org.apache.activemq.artemis.core.journal.impl.JournalImpl.load(JournalImpl.java:2317)
>  at 
> org.apache.activemq.artemis.core.journal.impl.JournalImpl.load(JournalImpl.java:1649)
>  at org.apache.activemq.artemis.core.journal.Journal.load(Journal.java:276)
>  at 
> org.apache.activemq.artemis.core.persistence.impl.journal.AbstractJournalStorageManager.loadBindingJournal(AbstractJournalStorageManager.java:1659)
>  at 
> org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl.loadJournals(ActiveMQServerImpl.java:3837)
>  at 
> org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl.initialisePart2(ActiveMQServerImpl.java:3469)
>  at 
> org.apache.activemq.artemis.core.server.impl.PrimaryOnlyActivation.run(PrimaryOnlyActivation.java:78)
>  at 
> org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl.internalStart(ActiveMQServerImpl.java:754)
>  at 
> org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl.start(ActiveMQServerImpl.java:644)
>  at 
> org.apache.activemq.artemis.core.server.embedded.EmbeddedActiveMQ.start(EmbeddedActiveMQ.java:124)
>  at 
> java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
>  at java.base/java.lang.reflect.Method.invoke(Method.java:565){noformat}
> The problem seems to be that {{NIOSequentialFileFactory}} calls the 
> deprecated {{PlatformDependent.freeDirectBuffer}} Netty method which now 
> delegates to the {{CleanerJava25}} method which throws an 
> {{{}UnsupportedOperationException{}}}.
> The issue currently blocks our Spring Boot upgrade. Would be great if it 
> could be fixed or if someone would have at least an idea how to workaround it.



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