Why DWR 2.0.1 is trying to configure from Annotations?

[dio]

Hi,
I am running DWR 2.0.1 with Struts 1.2.7 on WebLogic 8.1 SP6
I am getting the following exception during the  startup.

It seems like it is trying to load configuration using org.directwebremoting.impl.ContainerUtil.configureFromAnnotations
even though it is running in Java 1.4x environment and my configuration is using regular dwr.xml under WEB-INF.
I successfully use the same version of JVM, DWR and WebLogic with Spring 2.0.3 without a problem, but I used spring-servlet.xml to configrure DWR. But here I am using Struts 1.2.7 and dwr.xml in WEB-INF
Can any body any have suggestions?
Thanks,
-- Deha Peker

022608--20:20:25,412 --DEBUG -- CommonsLoggingOutput -- - adding creator: NewCreator for LimitsUsrProRemote
022608--20:20:25,427 --FATAL -- CommonsLoggingOutput -- Rethrowing Error:java.lang.ExceptionInInitializerError
022608--20:20:25,427 --FATAL -- CommonsLoggingOutput -- ExceptionInInitializerError. Nested exception:
java.lang.NullPointerException
        at java.util.Hashtable.get(Hashtable.java:333)
        at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:233)
        at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:209)
        at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:351)
        at org.directwebremoting.util.CommonsLoggingOutput.<init>(CommonsLoggingOutput.java:35)
        at org.directwebremoting.util.Logger.<init>(Logger.java:62)
        at org.directwebremoting.util.Logger.getLogger(Logger.java:33)
        at org.directwebremoting.annotations.AnnotationsConfigurator.<clinit>(AnnotationsConfigurator.java:335)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
        at java.lang.Class.newInstance0(Class.java:308)
        at java.lang.Class.newInstance(Class.java:261)
        at org.directwebremoting.impl.ContainerUtil.configureFromAnnotations(ContainerUtil.java:332)
        at org.directwebremoting.impl.ContainerUtil.configureContainerFully(ContainerUtil.java:428)
        at org.directwebremoting.servlet.DwrServlet.init(DwrServlet.java:79)
        at weblogic.servlet.internal.ServletStubImpl$ServletInitAction.run(ServletStubImpl.java:1099)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
        at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
        at weblogic.servlet.internal.ServletStubImpl.createServlet(ServletStubImpl.java:975)
        at weblogic.servlet.internal.ServletStubImpl.createInstances(ServletStubImpl.java:954)
        at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:893)
        at weblogic.servlet.internal.WebAppServletContext.preloadServlet(WebAppServletContext.java:3456)
        at weblogic.servlet.internal.WebAppServletContext.preloadServlets(WebAppServletContext.java:3413)
        at weblogic.servlet.internal.WebAppServletContext.preloadServlets(WebAppServletContext.java:3399)
        at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:3382)
        at weblogic.servlet.internal.WebAppServletContext.setStarted(WebAppServletContext.java:6262)
        at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:892)
        at weblogic.j2ee.J2EEApplicationContainer.start(J2EEApplicationContainer.java:2181)
        at weblogic.j2ee.J2EEApplicationContainer.activate(J2EEApplicationContainer.java:2222)
        at weblogic.j2ee.J2EEApplicationContainer.activate(J2EEApplicationContainer.java:2169)
        at weblogic.management.deploy.slave.SlaveDeployer$Application.setActivation(SlaveDeployer.java:3111)
        at weblogic.management.deploy.slave.SlaveDeployer.setActivationStateForAllApplications(SlaveDeployer.java:1769)
        at weblogic.management.deploy.slave.SlaveDeployer.resume(SlaveDeployer.java:352)
        at weblogic.management.deploy.DeploymentManagerServerLifeCycleImpl.resume(DeploymentManagerServerLifeCycleImpl.java:229)
        at weblogic.t3.srvr.SubsystemManager.resume(SubsystemManager.java:136)
        at weblogic.t3.srvr.T3Srvr.resume(T3Srvr.java:965)
        at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:360)
        at weblogic.Server.main(Server.java:32)
***********************************
*********  web.xml
***********************************
<?xml version="1.0" encoding="ISO-8859-1"?>
<!-- edited with XMLSPY v5 rel. 4 U (http://www.xmlspy.com) by Peter Dixon-Moses (Home) -->
<!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>
        <display-name>Limit Web Application</display-name>
        <!-- Action Servlet Configuration -->
        <servlet>
                <servlet-name>action</servlet-name>
                <servlet-class>
                        org.apache.struts.action.ActionServlet
                </servlet-class>
                <init-param>
                        <param-name>config</param-name>
                        <param-value>/WEB-INF/struts-config.xml</param-value>
                </init-param>
                <init-param>
                        <param-name>config/workflowmanager</param-name>
                        <param-value>
                                /WEB-INF/struts-common-config.xml,
                                /WEB-INF/struts-workflowmanager-config.xml
                        </param-value>
                </init-param>
                <init-param>
                        <param-name>config/docmanager</param-name>
                        <param-value>
                                /WEB-INF/struts-common-config.xml,
                                /WEB-INF/struts-docmanager-config.xml
                        </param-value>
                </init-param>
                <init-param>
                        <param-name>definitions-config</param-name>
                        <param-value>
                                /WEB-INF/tiles-workflowmanager-defs.xml,
                                /WEB-INF/tiles-docmanager-defs.xml
                        </param-value>
                </init-param>
                <init-param>
                        <param-name>detail</param-name>
                        <param-value>3</param-value>
                </init-param>
                <load-on-startup>1</load-on-startup>
        </servlet>
        <servlet>
                <servlet-name>dwr-invoker</servlet-name>
                <display-name>DWR Servlet</display-name>
                <description>Direct Web Remoter Servlet</description>
                <servlet-class>
                        org.directwebremoting.servlet.DwrServlet
                </servlet-class>
                <init-param>
                        <param-name>debug</param-name>
                        <param-value>true</param-value>
                </init-param>
                <load-on-startup>1</load-on-startup>
        </servlet>
        <servlet-mapping>
                <servlet-name>dwr-invoker</servlet-name>
                <url-pattern>/dwr/*</url-pattern>
        </servlet-mapping>
        <servlet-mapping>
                <servlet-name>action</servlet-name>
                <url-pattern>*.do</url-pattern>
        </servlet-mapping>
</web-app>

***********************************
*********  dwr.xml
***********************************
<!DOCTYPE dwr PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 2.0//EN" "http://getahead.org/dwr/dwr20.dtd">

<dwr>
        <allow>
                <create creator="new" javascript="LimitsUsrProRemote">
                       
                                <include method="suggestUsersWithReadWriteAccess"/>
                </create>
        </allow>
</dwr>

[dio]

I also saw the following exception related with the problem.
-- Deha Peker

022608--20:20:25,396 --DEBUG -- CommonsLoggingOutput -- Configuring from servlet resource: /WEB-INF/dwr.xml
022608--20:20:25,412 --DEBUG -- CommonsLoggingOutput -- - adding creator: NewCreator for LimitsUsrProRemote
022608--20:20:25,427 --FATAL -- CommonsLoggingOutput -- Rethrowing Error:java.lang.ExceptionInInitializerError
022608--20:20:25,427 --FATAL -- CommonsLoggingOutput -- ExceptionInInitializerError. Nested exception:
java.lang.NullPointerException
        at java.util.Hashtable.get(Hashtable.java:333)
        at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:233)
        at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:209)
        at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:351)
        at org.directwebremoting.util.CommonsLoggingOutput.<init>(CommonsLoggingOutput.java:35)
        at org.directwebremoting.util.Logger.<init>(Logger.java:62)
        at org.directwebremoting.util.Logger.getLogger(Logger.java:33)
        at org.directwebremoting.annotations.AnnotationsConfigurator.<clinit>(AnnotationsConfigurator.java:335)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
        at java.lang.Class.newInstance0(Class.java:308)
        at java.lang.Class.newInstance(Class.java:261)
        at org.directwebremoting.impl.ContainerUtil.configureFromAnnotations(ContainerUtil.java:332)
        at org.directwebremoting.impl.ContainerUtil.configureContainerFully(ContainerUtil.java:428)
        at org.directwebremoting.servlet.DwrServlet.init(DwrServlet.java:79)
        at weblogic.servlet.internal.ServletStubImpl$ServletInitAction.run(ServletStubImpl.java:1099)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
        at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
        at weblogic.servlet.internal.ServletStubImpl.createServlet(ServletStubImpl.java:975)
        at weblogic.servlet.internal.ServletStubImpl.createInstances(ServletStubImpl.java:954)
        at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:893)
        at weblogic.servlet.internal.WebAppServletContext.preloadServlet(WebAppServletContext.java:3456)
        at weblogic.servlet.internal.WebAppServletContext.preloadServlets(WebAppServletContext.java:3413)
        at weblogic.servlet.internal.WebAppServletContext.preloadServlets(WebAppServletContext.java:3399)
        at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:3382)
        at weblogic.servlet.internal.WebAppServletContext.setStarted(WebAppServletContext.java:6262)
        at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:892)
        at weblogic.j2ee.J2EEApplicationContainer.start(J2EEApplicationContainer.java:2181)
        at weblogic.j2ee.J2EEApplicationContainer.activate(J2EEApplicationContainer.java:2222)
        at weblogic.j2ee.J2EEApplicationContainer.activate(J2EEApplicationContainer.java:2169)
        at weblogic.management.deploy.slave.SlaveDeployer$Application.setActivation(SlaveDeployer.java:3111)
        at weblogic.management.deploy.slave.SlaveDeployer.setActivationStateForAllApplications(SlaveDeployer.java:1769)
        at weblogic.management.deploy.slave.SlaveDeployer.resume(SlaveDeployer.java:352)
        at weblogic.management.deploy.DeploymentManagerServerLifeCycleImpl.resume(DeploymentManagerServerLifeCycleImpl.java:229)
        at weblogic.t3.srvr.SubsystemManager.resume(SubsystemManager.java:136)
        at weblogic.t3.srvr.T3Srvr.resume(T3Srvr.java:965)
        at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:360)
        at weblogic.Server.main(Server.java:32)
022608--20:48:04,902 --INFO  -- CommonsLoggingOutput -- DWR Version 2.0.1 starti