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https://issues.apache.org/jira/browse/CASSANDRA-17992?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17625498#comment-17625498
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Benedict Elliott Smith commented on CASSANDRA-17992:
----------------------------------------------------
{code}
java.lang.ClassCastException: class
org.apache.cassandra.utils.memory.BufferPool$Chunk cannot be cast to class
sun.nio.ch.DirectBuffer (org.apache.cassandra.utils.memory.BufferPool$Chunk is
in unnamed module of loader 'app'; sun.nio.ch.DirectBuffer is in module
java.base of loader 'bootstrap')\n\tat
java.base/com.sun.crypto.provider.GaloisCounterMode$GCMEngine.overlapDetection(GaloisCounterMode.java:865)\n\tat
java.base/com.sun.crypto.provider.GaloisCounterMode$GCMDecrypt.doFinal(GaloisCounterMode.java:1502)\n\tat
java.base/com.sun.crypto.provider.GaloisCounterMode.engineDoFinal(GaloisCounterMode.java:447)\n\tat
{code}
This is interesting, it appears to be within the JDK. If a newer netty fixes
it, great. But it might be worth digging into why the JDK crypto functionality
is getting hold of a Chunk. It might simply be different default TLS settings
on the netty side fixing it, so that the faulty (for our use case) JDK
functionality isn't invoked, but it may remain as a submarine for other users
specifying the relevant encryption settings.
> Upgrade Netty on 4.x(current trunk)
> -----------------------------------
>
> Key: CASSANDRA-17992
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17992
> Project: Cassandra
> Issue Type: Task
> Components: Dependencies
> Reporter: Ekaterina Dimitrova
> Priority: Low
> Fix For: 4.x
>
>
> I haven't been able to identify from the Netty docs which was the lowest
> version where JDK17 was added but we are about 40 versions behind in netty 4
> so I suspect we better update.
> We need to consider there was an issue with class cast exceptions when
> building with JDK17 with newer versions of netty (the newest available in
> March 2022). For the record, we didn't see those when running CI on JDK8 and
> JDK11. We also need to carefully revise the changes between the netty
> versions.
> Upgrading will cover also a fix in netty that was discussed in
> [this|https://the-asf.slack.com/archives/CK23JSY2K/p1665567660202989] ASF
> Slack thread.
> CC [~benedict] , [~aleksey]
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