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From "John Watt" <John.W...@glasgow.ac.uk>
Subject RE: org.apache.axiom.om.impl.llom.factory.OMLinkedListMetaFactory cannot be cast to org.apache.axiom.om.OMMetaFactory
Date Thu, 12 Jan 2012 16:13:25 GMT
We definitely don't have different versions of the .jars, and a search
of the whole filesystem shows only the one version of the axiom jars.

However, our Java client is running in the same Tomcat container as the
Axis2 service, so I copied some of the libs in the Axis2 lib directory
to $CATALINA_HOME/lib for the client to make use of them. Could this
duplication cause a problem like the one reported?

Thanks!
John

-----Original Message-----
From: Okken,Brett [mailto:BOKKEN@CERNER.COM] 
Sent: 12 January 2012 16:02
To: java-user@axis.apache.org
Subject: RE:
org.apache.axiom.om.impl.llom.factory.OMLinkedListMetaFactory cannot be
cast to org.apache.axiom.om.OMMetaFactory

I am guessing that you have some other version of one or more of those
jars in your classpath somewhere. In 1.2.10, OMLinkedListMetaFactory (in
axiom-api) directly implements OMMetaFactory (from axiom-api):
	public class OMLinkedListMetaFactory implements OMMetaFactory
This changes in 1.2.11, where OMLinkedListMetaFactory extends
AbstractOMMetaFactory (from axiom-api):
	public class OMLinkedListMetaFactory extends
AbstractOMMetaFactory


Brett 

-----Original Message-----
From: John Watt [mailto:John.Watt@glasgow.ac.uk]
Sent: Thursday, January 12, 2012 9:02 AM
To: java-user@axis.apache.org
Subject: RE:
org.apache.axiom.om.impl.llom.factory.OMLinkedListMetaFactory cannot be
cast to org.apache.axiom.om.OMMetaFactory

Hi Brett,

Its using 

axiom-api-1.2.10.jar
axiom-dom-1.2.10.jar
axiom-impl-1.2.10.jar

Thanks,
John

-----Original Message-----
From: Okken,Brett [mailto:BOKKEN@CERNER.COM]
Sent: 12 January 2012 15:00
To: java-user@axis.apache.org
Subject: RE:
org.apache.axiom.om.impl.llom.factory.OMLinkedListMetaFactory cannot be
cast to org.apache.axiom.om.OMMetaFactory

What versions of the following projects are in your assembly:
axiom-api
axiom-dom
axiom-impl

Brett Okken

-----Original Message-----
From: John Watt [mailto:John.Watt@glasgow.ac.uk]
Sent: Thursday, January 12, 2012 8:51 AM
To: java-user@axis.apache.org
Subject: FW:
org.apache.axiom.om.impl.llom.factory.OMLinkedListMetaFactory cannot be
cast to org.apache.axiom.om.OMMetaFactory

Hi,

I have an Axis2 web service which allows values to be set then retrieved
using separate methods. This service works fine in the browser. This
service is using axis2 1.5.3 and axiom 1.2.10.

I then tried to run up a Java client (webClientBean, which is called
from a JSP page) using the same Axis2 library versions which
programmatically calls the service. Using the ServiceClient example at
the following page:

http://today.java.net/pub/a/today/2006/12/13/invoking-web-services-using
-apache-axis2.html 

I've created a client which is attached (webClientBean).

I get the following error in Tomcat when it is invoked:

org.apache.jasper.JasperException: java.lang.ClassCastException:
org.apache.axiom.om.impl.llom.factory.OMLinkedListMetaFactory cannot be
cast to org.apache.axiom.om.OMMetaFactory
	
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServle
tWrapper.java:491)
	
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.ja
va:419)
	
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
	
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

root cause

java.lang.ClassCastException:
org.apache.axiom.om.impl.llom.factory.OMLinkedListMetaFactory cannot be
cast to org.apache.axiom.om.OMMetaFactory
	
org.apache.axiom.om.OMAbstractFactory.getMetaFactory(OMAbstractFactory.j
ava:133)
	
org.apache.axiom.om.OMAbstractFactory.getOMFactory(OMAbstractFactory.jav
a:152)
	
org.apache.axis2.description.AxisDescription.<init>(AxisDescription.java
:70)
	
org.apache.axis2.engine.AxisConfiguration.<init>(AxisConfiguration.java:
160)
	
org.apache.axis2.deployment.DeploymentEngine.populateAxisConfiguration(D
eploymentEngine.java:701)
	
org.apache.axis2.deployment.FileSystemConfigurator.getAxisConfiguration(
FileSystemConfigurator.java:116)
	
org.apache.axis2.context.ConfigurationContextFactory.createConfiguration
Context(ConfigurationContextFactory.java:64)
	
org.apache.axis2.context.ConfigurationContextFactory.createConfiguration
ContextFromFileSystem(ConfigurationContextFactory.java:206)
	
org.apache.axis2.client.ServiceClient.configureServiceClient(ServiceClie
nt.java:150)
	
org.apache.axis2.client.ServiceClient.<init>(ServiceClient.java:143)
	
org.apache.axis2.client.ServiceClient.<init>(ServiceClient.java:246)
	vanguard2.webClientBean.callWebServiceSet(webClientBean.java:60)
	org.apache.jsp.index_jsp._jspService(index_jsp.java:93)
	
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.ja
va:377)
	
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
	
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)


Do you know what the problem is? I've had a look at the advice in
http://ws.apache.org/axiom/userguide/ch04.html with regard to Migrating
from older Axiom Versions, but I'm not sure if this is the problem, or
how to fix it.

Thanks,
John

Dr. John Watt
BSc.(Hons) Ph.D MInstP
Technical Director NeSC

Direct Line: +44 (0)141 330 8647
Fax: +44 (0)141 330 7305
Mobile: 07545 500579
Email: John.Watt@glasgow.ac.uk

National e-Science Centre
University of Glasgow
Room 246D, Kelvin Building
University Avenue
G12 8QQ

The University of Glasgow, charity number SC004401


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