Use with 8.25.0 agent prevents Ktor+Jetty apps from starting

[axelfontaine]

Description

Ktor (with Jetty) never completes its startup and begins listening when used with the 8.25.0 agent and the latest version of this extension.

Using the 8.24.0 agent and below works fine.

Workaround with 8.25.0: removed this extension, but then transaction names no longer show up correctly in NewRelic

Steps to Reproduce

1. Upgrade a Ktor (with Jetty) app using this extension from the 8.24.0 to the 8.25.0 agent.
2. The app no longer begins listening to the http or https port

Expected Behavior

Works as before: Ktor app starts normally and transaction names are visible in NewRelic.

Relevant Logs / Console output

n/a

Your Environment

Java 25, Kotlin 2.3.0-Beta2, Ktor 3.2.3, Coroutines 1.10.2, newrelic-java 8.25.0, newrelic-ktor-instrumentation 2.1.2

Additional context

n/a

[dhilpipre]

@axelfontaine If you are referring to the extensions for Kotlin Coroutines then they need to be removed. These extensions have been moved to the Java Agent and were included in the new release. Having both these extensions and the newly released agent could lead to conflicts due to double instrumentation.
This repo is set to be archived now that this instrumentation is in the Java Agent.
Let me know if you still have problems after testing without the extensions and Agent release 8.25.0.

[axelfontaine]

Yes, I still have problems. As I mentioned I removed the extensions to make the agent work, but now the transaction names coroutine names (and not the web routes) in the NewRelic web UI.

[dhilpipre]

@axelfontaine So this sounds like a problem with the Ktor instrumentation rather than Coroutines. Web route naming comes from the Ktor instrumentation. So only the Coroutines instrumentation extensions are in the agent. So if there is a problem this needs to be opened on the Ktor repo (https://github.com/newrelic-experimental/newrelic-java-ktor).
We will test to see if there problems with 8.25.0 and the Ktor instrumentation.