Component generated an error

Any Idea how to handle this

java.lang.RuntimeException: Execution exception in com.interwoven.livesite.external.ExternalCall@1fea78e[object=com.interwoven.customer.external.runtime.SBDcrFileLoader,method=public org.dom4j.Document getIndividualDcr(com.interwoven.livesite.runtime.RequestContext,),scope=local,parameters={},prefixCalls=[]]
at com.interwoven.livesite.common.pojo.PojoMethodCall.execute(PojoMethodCall.java:464)
at com.interwoven.livesite.external.ExternalCall.execute(ExternalCall.java:136)
at com.interwoven.livesite.runtime.model.component.Component.executeExternal(Component.java:417)
at com.interwoven.livesite.runtime.model.page.RuntimeComponent.buildComponentTransformData(RuntimeComponent.java:239)
at com.interwoven.livesite.runtime.model.page.RuntimeComponent.transform(RuntimeComponent.java:315)
at com.interwoven.livesite.runtime.page.PageTokenVariableComponent.preRender(PageTokenVariableComponent.java:129)
at com.interwoven.livesite.runtime.page.PageTokenContainer.preRender(PageTokenContainer.java:262)
at com.interwoven.livesite.runtime.model.page.RuntimePage.transform(RuntimePage.java:356)
at com.interwoven.livesite.model.page.PreviewPage.getBaseTransform(PreviewPage.java:331)
at com.interwoven.livesite.model.page.PreviewPage.transform(PreviewPage.java:309)
at com.interwoven.livesite.iw.servlet.preview.rendering.IntermediateRenderingManager.doOutputPage(IntermediateRenderingManager.java:233)
at com.interwoven.livesite.runtime.rendering.RenderingManager.doOutput(RenderingManager.java:1148)
at com.interwoven.livesite.runtime.rendering.RenderingManager.doSetupRenderingObjects(RenderingManager.java:550)
at com.interwoven.livesite.runtime.rendering.RenderingManager.renderPageGoal(RenderingManager.java:297)
at com.interwoven.livesite.runtime.rendering.RenderingManager.render(RenderingManager.java:226)
at com.interwoven.livesite.runtime.impl.BaseRequestContext.render(BaseRequestContext.java:205)
at com.interwoven.livesite.iw.servlet.preview.PreviewFilter.processRequestFurther(PreviewFilter.java:221)
at com.interwoven.livesite.iw.servlet.preview.PreviewFilter.doFilter(PreviewFilter.java:148)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:183)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:138)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:595)

Caused by: java.lang.RuntimeException: Could not invoke method: getIndividualDcr, reason: com.interwoven.livesite.model.content.ContentCategory
at com.interwoven.livesite.common.util.ClassUtils.executeMethod(ClassUtils.java:117)
at com.interwoven.livesite.common.pojo.PojoMethodCall.executeMethod(PojoMethodCall.java:405)
at com.interwoven.livesite.common.pojo.PojoMethodCall.execute(PojoMethodCall.java:459)
... 31 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at com.interwoven.livesite.common.util.ClassUtils.executeMethod(ClassUtils.java:109)
... 33 more
Caused by: java.lang.ClassCastException: com.interwoven.livesite.model.content.ContentCategory
at com.interwoven.customer.external.runtime.OSBDcrFileLoader.getIndividualDcr(Unknown Source)
... 38 more

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Comments

Adam Stoller

The root of the problem seems to be at the end...

java.lang.RuntimeException: Execution exception in com.interwoven.livesite.external.ExternalCall@1fea78e[object=com.interwoven.customer.external.runtime.SBDcrFileLoader,method=public org.dom4j.Document getIndividualDcr(com.interwoven.livesite.runtime.RequestContext,),scope=local,parameters={},prefixCalls=[]]
at com.interwoven.livesite.common.pojo.PojoMethodCall.execute(PojoMethodCall.java:464)
[...]
Caused by: java.lang.RuntimeException: Could not invoke method: getIndividualDcr, reason: com.interwoven.livesite.model.content.ContentCategory
at com.interwoven.livesite.common.util.ClassUtils.executeMethod(ClassUtils.java:117)
[...]
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[...]
Caused by: java.lang.ClassCastException: com.interwoven.livesite.model.content.ContentCategory
at com.interwoven.customer.external.runtime.OSBDcrFileLoader.getIndividualDcr(Unknown Source)
... 38 more

I'd suggest focusing on those last two lines (especially why the source of the last line is unknown) in trying to figure out why you're getting a class casting exception with regard to [presumably] the DCR's content category.

Shikha21

Thanks ghoti for reply.

But this is suddenly stopped working, may be after running the build.sh.

In my code, com.interwoven.livesite.model.content.ContentCategory is not
at all using.

If I hit URL with wrong contentId then DCR will display but in with correct
contentId its throwing below exception.

Any Idea what is "NOT caching" in component?
--------------------------------------
------------------------------------
public Document getIndividualDcr(RequestContext context)
--------------------------------------------------------------------------
2011-09-23 03:11:37,371 ERROR [com.interwoven.livesite.runtime.page.PageTokenVariableComponent] Component generated an error, NOT caching

Caused by: java.lang.ClassCastException: com.interwoven.livesite.model.content.ContentCategory
at com.interwoven.customer.external.runtime.OSBDcrFileLoader.getIndividualDcr(Unknown Source)
... 38 more

Adam Stoller

Thanks ghoti for reply.

But this is suddenly stopped working, may be after running the build.sh.

That would indicate that somehow the code in the src area changed (broke) such that the libraries / classes you pushed out no longer support the code that was written against them.

Hopefully you had the code under some form of version control (either within TeamSite or within some other SCM system) so that you can look at changes made since the last time everything worked.

Shikha21

Issue resolved.

-----------------------------------------------------------------
My jar files are in 3 different places does it impact something

./local/config/lib/content_center/livesite_customer_out/livesite_customer.jar
./httpd/webapps/iw-preview/WEB-INF/lib/livesite_customer.jar
./httpd/webapps/content_center/WEB-INF/lib/livesite_customer.jar
-----------------------------------------------------------------

Problem was here :

Iterator skwIterator = skw.iterator()

while(skwIterator.hasNext()){

String category = (String)skwIterator.next();