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Why WebServiceServlet is not able to load servlets in WLS 8.1?

 
Greenhorn
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ravikadoor@yahoo.com Hello,

I am implementing the WebService using JAX-RPC model in Weblogic 8.1 SP4. I am facing the problem in load WebServiceServlet, if my WebService extends ServletEndpointSupport class of Spring API.

The code attached here,

Java WebService class:
JaxRpcEBusinessService.java:

public class JaxRpcEBusinessService
extends ServletEndpointSupport
implements EBusinessFacade {

/** the WebMDService instance */
private EBusinessFacade eBusinessFacade = null;

/**
* This is a default constructor
*/
public JaxRpcEBusinessService() {
}

protected void onInit() {
this.eBusinessFacade = (EBusinessFacade) getWebApplicationContext().
getBean("eBusinessFacade");
}

// business methods
}


Configuration files:
web.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>

<!--
- Location of the Log4J config file, for initialization and refresh checks.
- Applied by Log4jConfigListener.
-->
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>/WEB-INF/log4j.properties</param-value>
</context-param>

<!-- Load on startup servlets in the loading order -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:/beanRefContext.xml</param-value>
</context-param>

<listener>
<listener-class>org.springframework.web.context.ContextLoade rListener</listener-class>
</listener>

<servlet>
<servlet-name>context</servlet-name>
<servlet-class>org.springframework.web.context.ContextLoade rServlet</servlet-class>
<init-param>
<param-name>contextClass</param-name>
<param-value>org.springframework.web.context.XmlWebApplic ationContext</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>

<!--
- Spring web MVC servlet that dispatches requests to registered handlers.
- Has its own application context, by default defined in "{servlet-name}-servlet.xml",
- i.e. "webservices-servlet.xml" in this case.
-
- A web app can contain any number of such servlets.
- Note that this web app has a shared root application context, serving as parent
- of all DispatcherServlet contexts.
-->
<servlet>
<servlet-name>webservices</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherSe rvlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>


<!-- Logger initialization servlet -->
<servlet>
<servlet-name>LoggingConfig</servlet-name>
<servlet-class>com.wellpoint.webmd.webutils.LoggingConfig</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>

<!-- Servlet mappings -->
<servlet-mapping>
<servlet-name>LoggingConfig</servlet-name>
<url-pattern>/servlet/LoggingConfig</url-pattern>
</servlet-mapping>

<servlet-mapping>
<servlet-name>webservices</servlet-name>
<url-pattern>/webservices/*</url-pattern>
</servlet-mapping>

</web-app>



webservices-servlet.xml:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">

<!--
- Application context for the remote EBusinessFacade client.
- Defines various EBusinessFacade proxies to be called by schedulers.
-->
<beans>

<bean id="eBusinessFacade"
class="com.wellpoint.webmd.services.EBusinessFacad eImpl"/>

</beans>


The stack trace give which is throwing in the WLS 8.1 server on deployment is here,

<Apr 6, 2006 12:43:41 PM EDT> <Error> <HTTP> <BEA-101216> <Servlet: "WebServic
ervlet" failed to preload on startup in Web application: "WebMDUI".
javax.servlet.ServletException: WebServiceServlet did not initialized properly
eblogic.webservice.server.ConfigException: failed to create invocation handler
at weblogic.webservice.server.servlet.WebServiceServl et.initLocal(WebS
viceServlet.java:128)
at weblogic.webservice.server.servlet.WebServiceServl et.init(WebServic
ervlet.java:86)
at javax.servlet.GenericServlet.init(GenericServlet.j ava:258)
at weblogic.servlet.internal.ServletStubImpl$ServletI nitAction.run(Ser
etStubImpl.java:1028)
at weblogic.security.acl.internal.AuthenticatedSubjec t.doAs(Authentica
dSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(Se curityManager.jav
121)
at weblogic.servlet.internal.ServletStubImpl.createSe rvlet(ServletStub
pl.java:904)
at weblogic.servlet.internal.ServletStubImpl.createIn stances(ServletSt
Impl.java:883)
at weblogic.servlet.internal.ServletStubImpl.prepareS ervlet(ServletStu
mpl.java:822)
at weblogic.servlet.internal.WebAppServletContext.pre loadServlet(WebAp
ervletContext.java:3333)
at weblogic.servlet.internal.WebAppServletContext.pre loadServlets(WebA
ServletContext.java:3278)
at weblogic.servlet.internal.WebAppServletContext.pre loadResources(Web
pServletContext.java:3259)
at weblogic.servlet.internal.WebAppServletContext.set Started(WebAppSer
etContext.java:5949)
at weblogic.servlet.internal.WebAppModule.start(WebAp pModule.java:862)
at weblogic.j2ee.J2EEApplicationContainer.start(J2EEA pplicationContain
.java:2127)
at weblogic.j2ee.J2EEApplicationContainer.activate(J2 EEApplicationCont
ner.java:2168)
at weblogic.management.deploy.slave.SlaveDeployer$Com ponentActivateTas
activateContainer(SlaveDeployer.java:2503)
at weblogic.management.deploy.slave.SlaveDeployer$Act ivateTask.doCommi
SlaveDeployer.java:2421)
at weblogic.management.deploy.slave.SlaveDeployer$Tas k.commit(SlaveDep
yer.java:2138)
at weblogic.management.deploy.slave.SlaveDeployer$Tas k.checkAutoCommit
laveDeployer.java:2237)
at weblogic.management.deploy.slave.SlaveDeployer$Tas k.prepare(SlaveDe
oyer.java:2132)
at weblogic.management.deploy.slave.SlaveDeployer$Act ivateTask.prepare
laveDeployer.java:2384)
at weblogic.management.deploy.slave.SlaveDeployer.pro cessPrepareTask(S
veDeployer.java:866)
at weblogic.management.deploy.slave.SlaveDeployer.pre pareDelta(SlaveDe
oyer.java:594)
at weblogic.management.deploy.slave.SlaveDeployer.pre pareUpdate(SlaveD
loyer.java:508)
at weblogic.drs.internal.SlaveCallbackHandler$1.execu te(SlaveCallbackH
dler.java:25)
at weblogic.kernel.ExecuteThread.execute(ExecuteThrea d.java:219)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.ja va:178)
Caused by: weblogic.webservice.server.ConfigException: failed to create invoca
on handler
at weblogic.webservice.server.WebServiceFactory.initC omponents(WebServ
eFactory.java:433)
at weblogic.webservice.server.WebServiceFactory.creat eFromMBean(WebSer
ceFactory.java:195)
at weblogic.webservice.server.WebServiceFactory.creat eFromMBean(WebSer
ceFactory.java:156)
at weblogic.webservice.server.WebServiceContext.><init >(WebServiceConte
.java:91)
at weblogic.webservice.server.servlet.ServletSecurity Helper$1.run(Serv
tSecurityHelper.java:124)
at weblogic.security.acl.internal.AuthenticatedSubjec t.doAs(Authentica
dSubject.java:363)
at weblogic.security.service.SecurityManager.runAs(Se curityManager.jav
147)
at weblogic.webservice.server.servlet.ServletSecurity Helper.createWebS
viceContext(ServletSecurityHelper.java:118)
at weblogic.webservice.server.servlet.WebServiceServl et.initLocal(WebS
viceServlet.java:121)
... 27 more
>

Why WebServiceServlet is not able to load servlets in web.xml?
Can somebody suggest/guide me to resolve this problem?
Thanks in advance.

Thanks,
Ravi Kadoor
 
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