[Bug] An error is reported when undertow uses the sky-agent access interface

[JavaLionLi]

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• I had searched in the issues and found no similar issues.

Apache SkyWalking Component

OAP server (apache/skywalking)

What happened

An error is reported when undertow uses the sky-agent access interface

What you expected to happen

It works fine

How to reproduce

spring-boot 3.3.5
undertow 2.3.17 (Springboot comes with it)
sky-agent 9.2.0

If you access any interface during normal operation, an error will be reported

`2024-11-05 15:31:55 [XNIO-1 I/O-8] ERROR io.undertow.request

• UT005071: Undertow request failed HttpServerExchange{ GET /}
  java.lang.NullPointerException: Cannot invoke "org.apache.skywalking.apm.agent.core.context.ContextManagerExtendService.createTraceContext(String, boolean)" because "org.apache.skywalking.apm.agent.core.context.ContextManager.EXTEND_SERVICE" is null
  at org.apache.skywalking.apm.agent.core.context.ContextManager.getOrCreate(ContextManager.java:60)
  at org.apache.skywalking.apm.agent.core.context.ContextManager.createEntrySpan(ContextManager.java:115)
  at org.apache.skywalking.apm.plugin.undertow.v2x.handler.TracingHandler.handleRequest(TracingHandler.java:62)
  at io.undertow.server.Connectors.executeRootHandler(Connectors.java:395)
  at io.undertow.server.protocol.http.HttpReadListener.handleEventWithNoRunningRequest(HttpReadListener.java:265)
  at io.undertow.server.protocol.http.HttpReadListener.handleEvent(HttpReadListener.java:136)
  at io.undertow.server.protocol.http.HttpOpenListener.handleEvent(HttpOpenListener.java:162)
  at io.undertow.server.protocol.http.HttpOpenListener.handleEvent(HttpOpenListener.java:100)
  at io.undertow.server.protocol.http.HttpOpenListener.handleEvent(HttpOpenListener.java:57)
  at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
  at org.xnio.ChannelListeners$10.handleEvent(ChannelListeners.java:291)
  at org.xnio.ChannelListeners$10.handleEvent(ChannelListeners.java:286)
  at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
  at org.xnio.nio.QueuedNioTcpServer2.acceptTask(QueuedNioTcpServer2.java:178)
  at org.xnio.nio.WorkerThread.safeRun(WorkerThread.java:624)
  at org.xnio.nio.WorkerThread.run(WorkerThread.java:491)`

Anything else

No response

Are you willing to submit a pull request to fix on your own?

• Yes I am willing to submit a pull request on my own!

Code of Conduct

• I agree to follow this project's Code of Conduct

[wu-sheng]

"org.apache.skywalking.apm.agent.core.context.ContextManager.EXTEND_SERVICE" is null

This error indicates you changed the agent.jar or add/remove some plugins.

[JavaLionLi]

After downloading it directly from the official website, unzip the used , and only change the server address of the configuration file without modification

[JavaLionLi]

I re-downloaded another one and it seems to be fine, maybe there was a problem with the download process