Mark,

On 12/11/24 3:57 AM, Mark Thomas wrote:
On 11/12/2024 08:36, joan.balagu...@ventusproxy.com wrote:
Hello,


After migrating to Tomcat 10.1.34, I see these messages on the tomcat log. It's not affecting our application at all, I paste them below just for your
information.

Which version did you migrate from?

How often do you see these messages? Do they correlate with any particular (failed?) request.

Dec 10, 2024 2:39:02 PM
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor doRun

SEVERE: Error running socket processor

java.lang.NullPointerException: Cannot invoke
"java.nio.ByteBuffer.limit(int)" because "this.byteBuffer" is null

That is odd. I wouldn't expect byteBuffer to be null at the end of a request.

Use-after-free(/recycle)?

And:

Dec 10, 2024 2:57:00 PM org.apache.tomcat.util.net.NioEndpoint$Poller events

WARNING: Invalid null socket channel while processing poller event

Another odd one. I don't immediately see how that could happen either.

Any more information you can provided, particularly how to trigger either of these issues, would be appreciated.

This seems like something that could happen if the application were to be holding on to references it's not supposed to be holding on to.

-chris


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