NoClassDefFoundError Caused by: java.lang.ClassNotFoundException: io.undertow.servlet.handlers.ServletRequestContext from [Module "io.undertow.core:main"

[minnie0716]

Hello, I'm newbie of WildFly..

I installed pinpoint-agent, and set pinpoint bootstrap as below, to start up together.(wildfly,pinpoint agent)

and I deployed a application that uses spring.

When I call this application with this command,

curl -d "username=admin&password=1234" -H "Content-Type: application/x-www-form-urlencoded" -X POST http://IP:PORT/spring-boot-base/api/v1/login

Following error occured.

It seems that Wildfly starts to load 'io.undertow.servlet.handlers.ServletRequestContext' , but failed.

because, Wildfly try to find class from 'io.undertow.core' . and getting NoClassDefFoundError..

I think WildFly should find it from  'io.undertow.servlet' , not from 'io.undertow.core'.

Questions>

1.To avoid this error, I try to add this 2 lines to module.xml of undertow-core-1.4.0.Final.jar

<module name='io.undertow.servlet"/>

<module name=javax.servlet.api"/>

It solved above error, But i think this is not a correct solution.

How to solve this Problem?

2.What is role of undertow-core?

[minnie0716]

above issue did not solved yet..