1 Reply Latest reply: Dec 12, 2011 6:35 AM by Raja Babu P RSS

java.lang.ClassCastException: java.lang.Class incompatible with java.lang.String

Raja Babu P Newbie

Hi,

 

We are getting below ClassCastException randomly on our UAT environment.

 

lifecycle W java.lang.Class incompatible with java.lang.String
java.lang.ClassCastException: java.lang.Class incompatible with java.lang.String
at javax.faces.component.UIComponentBase.getRendererType(UIComponentBase.java:427)
at javax.faces.component.UIComponentBase.decode(UIComponentBase.java:786)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1047)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1042)
at org.richfaces.component.UISwitchablePanel.processDecodes(UISwitchablePanel.java:163)
at org.richfaces.component.UITabPanel.processDecodes(UITabPanel.java:155)
at org.ajax4jsf.component.AjaxViewRoot$1.invokeContextCallback(AjaxViewRoot.java:400)
at org.ajax4jsf.component.AjaxViewRoot.processPhase(AjaxViewRoot.java:240)
at org.ajax4jsf.component.AjaxViewRoot.processDecodes(AjaxViewRoot.java:417)
at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:312)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1657)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1597)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:131)
at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:530)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:188)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:116)
at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:206)
at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)
at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:388)
at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:515)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:188)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:116)
at com.bnp.scm.fo.common.BNPURLActionHandler.doFilter(BNPURLActionHandler.java:48)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:188)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:116)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:77)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:908)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:934)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:502)
at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:179)
at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:91)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:864)
at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1583)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:186)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:445)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:504)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:301)
at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:83)
at com.ibm.ws.ssl.channel.impl.SSLReadServiceContext$SSLReadCompletedCallback.complete(SSLReadServiceContext.java:1784)
at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165)
at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)
at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1604)

The application was using RichFaces UI 3.3.3 with JSF 2.0 implementation as frontend and deployed on WebSphere Fixpack 7.0.0.17. On debugging i can see the org.richfaces.component.UITabPanel child component was not holding sensible value for PropertyKeys.rendererType.

 

The application works fine in other environment and the issue was intermittent in UAT environment. Once it started throwing this exception the entire application will fail due to this. We need to restart and redeploy the application to continue further.

 

Any idea, on what might trigger this issue?

 

Please let me know if you need any more details.

 

Thanks in Advance.

 

Regards,

Raja.