What's Negative Cache ??

[Former Member]

Hello!:

The app was working for months without problem now I get this error:

<b>Root Cause</b>

The initial exception that caused the request to fail, was:

java.lang.ClassNotFoundException: com.repsolypf.gis.pozos.wdp.InternalGisView Found in negative cache -

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Loader Info -

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ClassLoader name: [local/PozosGis] Parent loader name: [Frame ClassLoader] References: common:service:http;service:servlet_jsp service:ejb common:service:iiop;service:naming;service:p4;service:ts service:jmsconnector library:jsse library:servlet common:library:IAIKSecurity;library:activation;library:mail;library:tc_secssl library:ejb20 library:j2eeca library:jms library:opensql common:library:com.sap.security.api.sda;library:com.sap.security.core.sda;library:security.class;library:webservices_lib;service:adminadapter;service:basicadmin;service:com.sap.security.core.ume.service;service:configuration;service:connector;service:dbpool;service:deploy;service:jmx;service:jmx_notification;service:keystore;service:security;service:userstore interface:resourcecontext_api interface:webservices interface:cross interface:ejbserialization sap.com/tc_wddispwda sap.com/tc_wdcorecomp service:webdynpro service:sld library:tc_ddicddicservices library:com.sap.aii.proxy.framework library:tc_graphicsigs library:com.sap.mw.jco library:com.sap.lcr.api.cimclient library:sapxmltoolkit library:com.sap.aii.util.rb library:com.sap.util.monitor.jarm library:tc_ddicddicruntime library:com.sap.aii.util.xml library:tc_colapi library:com.sap.aii.util.misc library:tc_{cmi library:tc}col~runtime Resources: D:\usr\sap\PD0\JC00\j2ee\cluster\server0\apps\local\PozosGis\webdynpro\public\lib\app.jar D:\usr\sap\PD0\JC00\j2ee\cluster\server0\apps\local\PozosGis\webdynpro\public\lib\classes111.jar D:\usr\sap\PD0\JC00\j2ee\cluster\server0\apps\local\PozosGis\webdynpro\public\lib\jcifs_vs1.jar Loading model: {parent,references,local} -

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at com.sap.engine.frame.core.load.ReferencedLoader.loadClass(ReferencedLoader.java:348)

at com.sap.tc.webdynpro.progmodel.generation.ControllerHelper.createDelegate(ControllerHelper.java:65)

at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.<init>(DelegatingView.java:41)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.createUninitializedView(ViewManager.java:486)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:523)

... 28 more

<b>Detailed Exception Chain</b>

com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to create delegate for view com.repsolypf.gis.pozos.GisView. (Hint: Is the corresponding DC deployed correctly? Does the DC contain the component?)

at com.sap.tc.webdynpro.progmodel.generation.ControllerHelper.createDelegate(ControllerHelper.java:110)

at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.<init>(DelegatingView.java:41)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.createUninitializedView(ViewManager.java:486)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:523)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.bindRoot(ViewManager.java:421)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.init(ViewManager.java:130)

at com.sap.tc.webdynpro.progmodel.view.InterfaceView.initController(InterfaceView.java:41)

at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:200)

at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.displayToplevelComponent(ClientComponent.java:135)

at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:404)

at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:618)

at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:59)

at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:251)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:154)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:116)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doGet(DispatcherServlet.java:48)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)

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

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325)

at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887)

at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241)

at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)

at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148)

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)

Caused by: java.lang.ClassNotFoundException: com.repsolypf.gis.pozos.wdp.InternalGisView

Found in negative cache

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Loader Info -

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ClassLoader name: [local/PozosGis]

Parent loader name: [Frame ClassLoader]

References:

common:service:http;service:servlet_jsp

service:ejb

common:service:iiop;service:naming;service:p4;service:ts

service:jmsconnector

library:jsse

library:servlet

common:library:IAIKSecurity;library:activation;library:mail;library:tc_secssl

library:ejb20

library:j2eeca

library:jms

library:opensql

common:library:com.sap.security.api.sda;library:com.sap.security.core.sda;library:security.class;library:webservices_lib;service:adminadapter;service:basicadmin;service:com.sap.security.core.ume.service;service:configuration;service:connector;service:dbpool;service:deploy;service:jmx;service:jmx_notification;service:keystore;service:security;service:userstore

interface:resourcecontext_api

interface:webservices

interface:cross

interface:ejbserialization

sap.com/tc_wddispwda

sap.com/tc_wdcorecomp

service:webdynpro

service:sld

library:tc_ddicddicservices

library:com.sap.aii.proxy.framework

library:tc_graphicsigs

library:com.sap.mw.jco

library:com.sap.lcr.api.cimclient

library:sapxmltoolkit

library:com.sap.aii.util.rb

library:com.sap.util.monitor.jarm

library:tc_ddicddicruntime

library:com.sap.aii.util.xml

library:tc_colapi

library:com.sap.aii.util.misc

library:tc~cmi

library:tc_colruntime

Resources:

D:\usr\sap\PD0\JC00\j2ee\cluster\server0\apps\local\PozosGis\webdynpro\public\lib\app.jar

D:\usr\sap\PD0\JC00\j2ee\cluster\server0\apps\local\PozosGis\webdynpro\public\lib\classes111.jar

D:\usr\sap\PD0\JC00\j2ee\cluster\server0\apps\local\PozosGis\webdynpro\public\lib\jcifs_vs1.jar

Loading model: {parent,references,local}

-

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at com.sap.engine.frame.core.load.ReferencedLoader.loadClass(ReferencedLoader.java:348)

at com.sap.tc.webdynpro.progmodel.generation.ControllerHelper.createDelegate(ControllerHelper.java:65)

... 31 more

I make a new deploy and the app works fine for 5 minutes, then I get this error again....

Any idea?

Thanks a lot for your time on this thread.

RLS

[Former Member · Accepted solution]

Rocio,

Try this forum link

Regards,

Anand

[Former Member]

You may have deployed multiple applications to WAS.

As you can see this issue is typically due to having two model objects

(or view or component etc) in two wd projects respectively with the samemodel name and the same model package it will confuse the classloading

system. Please check to make sure that all your view/component/model

names are unique across all deployed Web Dynpro projects.

Regards,

Subramanian V.

[Former Member]

Hi Subramanian:

I know it and if I perform the change it works, but It's hard to believe that having each app it's own namespace the WAS have this kind of problems. I would like to have it fix it from the server side, so I'm searching If there's the way.... with this problem I can't have a project and re-use it.

Thanks a lot for your time and answers.

Rocío.

[lajitha_menon]

Hi there,

Did you recently upgrade your system? Which version are you in? Are all the hotfixes for the version applied? Try it, because sometimes upgrades causes these issues,

Regards

LM

[Former Member]

Hi L. Menon:

Thanks for your answer.

There was no set up of any hotfix or SP.

Something strange is that if I test the app with the "Web Dynpro Administrator console" the apps works fine, there's no class loading issue and there's no error, but if I test it at SAP Portal the error appears.

Thanks.

RLS

[Former Member]

If you are in SP16 or lower check SAP Note : 923694 apply the given hotfix and check again for this issue.

Regards,

Subramanian V.

Message was edited by:

Subramanian Venkateswaran

[Former Member]

Thanks Subramanian V. for answering.

Can you check if this note is available because I'm trying but I can't see it.

Thanks again.

Regards,

Rocí

[Former Member]

The note is available. Checked again today.

Note 923694 - Importing a Web Dynpro Hot Fix for NW04 Support Package 16

Regards,

Subramanian V.

[Former Member]

Hi Subramanian:

The note was apply today and nothing change. (NW2004 SP19)

Any idea?.

Thanks a lot for your time and answers.

[Former Member]

The note was apply but nothing change....

Thanks for your time and answers.

Rocío.