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Collaboration WebDav Exchange integration problem

performed all the steps, uploaded form etc and created the DAVXchg transport.

When running the test iView, for instance, my appointments, am getting a java lang null pointer exception.

Error message from log is below. please help. thanks.

#00145E3CF398006C0000005600000A0400043C24F4602662#1192029323244#com.sap.ip.collaboration.gwui.api.GWUtils#sap.com/irj#com.sap.ip.collaboration.gwui.api.GWUtils#MARK#5768##blade09.lysing.is_DEP_1661550#MARK#8f775970774311dc945200145e3cf398#SAPEngine_Application_Thread[impl:3]_8##0#0#Fatal##Plain###GWUtils:formatMessage java.lang.NullPointerException

at com.sap.ip.collaboration.gw.impl.transport.davxchg.DAVXchgConnection.<init>(DAVXchgConnection.java:126)

at com.sap.ip.collaboration.gw.impl.transport.davxchg.DAVXchgCalendarTransport.getItemList(DAVXchgCalendarTransport.java:258)

at com.sap.ip.collaboration.gw.impl.framework.groupware.GroupwareManager.getItemList(GroupwareManager.java:263)

at com.sap.ip.collaboration.gw.impl.manager.calendar.ContentManager.getChildren(ContentManager.java:237)

at com.sapportals.wcm.repository.CollectionImpl.internalGetChildrenManager(CollectionImpl.java:1538)

at com.sapportals.wcm.repository.CollectionImpl.internalGetChildren(CollectionImpl.java:1555)

at com.sapportals.wcm.repository.CollectionImpl.doGetChildren(CollectionImpl.java:144)

at com.sapportals.wcm.repository.CollectionImpl.getChildren(CollectionImpl.java:124)

at com.sap.ip.collaboration.gwui.api.GWUtils.getAllCalendarItems(GWUtils.java:180)

at com.sap.ip.collaboration.gwui.api.htmlb.component.day.DayControlDynPage.doProcessBeforeOutput(DayControlDynPage.java:65)

at com.sapportals.htmlb.page.PageProcessor.handleRequest(PageProcessor.java:123)

at com.sapportals.portal.htmlb.page.PageProcessorComponent.doContent(PageProcessorComponent.java:134)

at com.sapportals.portal.prt.component.AbstractPortalComponent.doPreview(AbstractPortalComponent.java:240)

at com.sapportals.portal.prt.component.AbstractPortalComponent.serviceDeprecated(AbstractPortalComponent.java:168)

at com.sapportals.portal.prt.component.AbstractPortalComponent.service(AbstractPortalComponent.java:114)

at com.sapportals.portal.prt.core.PortalRequestManager.callPortalComponent(PortalRequestManager.java:328)

at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:136)

at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:189)

at com.sapportals.portal.prt.component.PortalComponentResponse.include(PortalComponentResponse.java:215)

at com.sapportals.portal.prt.pom.PortalNode.service(PortalNode.java:645)

at com.sapportals.portal.prt.core.PortalRequestManager.callPortalComponent(PortalRequestManager.java:328)

at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:136)

at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:189)

at com.sapportals.portal.prt.core.PortalRequestManager.runRequestCycle(PortalRequestManager.java:753)

at com.sapportals.portal.prt.connection.ServletConnection.handleRequest(ServletConnection.java:240)

at com.sapportals.portal.prt.dispatcher.Dispatcher$doService.run(Dispatcher.java:524)

at java.security.AccessController.doPrivileged(Native Method)

at com.sapportals.portal.prt.dispatcher.Dispatcher.service(Dispatcher.java:407)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at com.sap.engine.services.servlets_jsp.server.servlet.InvokerServlet.service(InvokerServlet.java:156)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:401)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:266)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:387)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:365)

at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:944)

at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:266)

at com.sap.engine.services.httpserver.server.Client.handle(Client.java:95)

at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:175)

at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)

at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)

at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)

at java.security.AccessController.doPrivileged(Native Method)

at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)

at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)

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