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LinkageError when trying to call CXF / SOAP web service

I have a project (like myproject) where I hosted a CXF RESTful service and a CXF WS / SOAP service and am working on JBoss (6.0.0.FINAL). The RESTful interface is used by all of our back-end systems, and the SOAP interface is used by third-party systems (as a callback interface).

The following urls are working fine.

  • REST URL: http://localhost:8080/myproject/internal/someOperation

    ( content-type: application/json

    and POST body)

  • SOAP WSDL: http://localhost:8080/myproject/cbsoap?wsdl

Now my problem is that the actual SOAP calls failed. I am using SOAPUI to try SOAP calls, but just to request WSDL. I am getting the following error: -

javax.servlet.ServletException: Servlet execution threw an exception
    org.jboss.weld.servlet.ConversationPropagationFilter.doFilter (ConversationPropagationFilter.java:67)

root cause

java.lang.LinkageError: loader constraint violation: when resolving overridden method "org.apache.cxf.jaxb.attachment.JAXBAttachmentUnmarshaller.getAttachmentAsDataHandler (Ljava / lang / String;) Ljavax / activation / DataHandler;" the class loader (instance of org / jboss / classloader / spi / base / BaseClassLoader) of the current class, org / apache / cxf / jaxb / attachment / JAXBAttachmentUnmarshaller, and its superclass loader (instance of), have different Class objects for the type r used in the signature
    org.apache.cxf.jaxb.JAXBDataBase.getAttachmentUnmarshaller (JAXBDataBase.java:78)
    org.apache.cxf.jaxb.io.DataReaderImpl.createUnmarshaller (DataReaderImpl.java:123)
    org.apache.cxf.jaxb.io.DataReaderImpl.read (DataReaderImpl.java:156)
    org.apache.cxf.interceptor.DocLiteralInInterceptor.handleMessage (DocLiteralInInterceptor.java:109)
    org.apache.cxf.phase.PhaseInterceptorChain.doIntercept (PhaseInterceptorChain.java:263)
    org.apache.cxf.transport.ChainInitiationObserver.onMessage (ChainInitiationObserver.java:121)
    org.apache.cxf.transport.http.AbstractHTTPDestination.invoke (AbstractHTTPDestination.java:207)
    org.apache.cxf.transport.servlet.ServletController.invokeDestination (ServletController.java:209)
    org.apache.cxf.transport.servlet.ServletController.invoke (ServletController.java:191)
    org.apache.cxf.transport.servlet.CXFNonSpringServlet.invoke (CXFNonSpringServlet.java:114)
    org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest (AbstractHTTPServlet.java:185)
    org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost (AbstractHTTPServlet.java:108)
    javax.servlet.http.HttpServlet.service (HttpServlet.java:754)
    org.apache.cxf.transport.servlet.AbstractHTTPServlet.service (AbstractHTTPServlet.java:164)
    org.jboss.weld.servlet.ConversationPropagationFilter.doFilter (ConversationPropagationFilter.java:67)
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2 answers


I finally solved the problem, but this is really weird.

  • I added cxf-rt-frontend-jaxws and cxf-bundle-rs as dependencies and mark some exceptions -> jetty-server, gernomino-servlet.
  • I had beans.xml in the WEB-INF folder, but I had to place it under src / main / resources. The beans.xml are supposed to be on the classpath, not WEB-INF.


Thank you for your responses.

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LinkageError

JBoss is usually caused by your application packaging its own copies of certain libraries that JBoss considers limited. Usually these are things in packages java.*

and javax.*

.

After looking at the stack trace, I guess the culprit is javax.activation.DataHandler

. Check the JAR files associated with your application to make sure they don't contain anything similar. If so, delete it.



It may not be javax.activation.DataHandler

, but it may be something that it depends on.

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