Hi Scott,
I am unable to find any URL misconfigured. After all , I am still getting
the same error :No principal was found in the response from the CAS server.
Can you please give a quick look at these 3 attached files ? 

http://www.nabble.com/file/p18615842/acegi-config.xml acegi-config.xml ,
  http://www.nabble.com/file/p18615842/web.xml web.xml ,
  http://www.nabble.com/file/p18615842/deployerConfigContext.xml
deployerConfigContext.xml 


-Shailendra


scott_battaglia wrote:
> 
> You probably have the URL misconfigured.
> -Scott
> 
> -Scott Battaglia
> PGP Public Key Id: 0x383733AA
> LinkedIn: http://www.linkedin.com/in/scottbattaglia
> 
> On Tue, Jul 22, 2008 at 7:04 PM, SMallik <[EMAIL PROTECTED]> wrote:
> 
>>
>> When I made the two url same, I got the following error :
>> -----------------------------------------------------
>> 17:53:46,162 ERROR XmlUtils,http-8443-Processor24:152 -
>> org.xml.sax.SAXParseException: The reference to entity "ticket" must end
>> with the ';' delimiter.
>> org.xml.sax.SAXParseException: The reference to entity "ticket" must end
>> with the ';' delimiter.
>>        at
>>
>> com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown
>> Source)
>>        at
>> com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLScanner.scanAttributeValue(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanAttribute(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
>> Source)
>>        at
>> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown
>> Source)
>>        at
>> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown
>> Source)
>>        at
>> com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown
>> Source)
>>        at
>> com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown
>> Source)
>>        at
>> org.jasig.cas.client.util.XmlUtils.getTextForElement(XmlUtils.java:150)
>>        at
>>
>> org.jasig.cas.client.validation.Cas20ServiceTicketValidator.parseResponseFromServer(Cas20ServiceTicketValidator.java:69)
>>        at
>>
>> org.jasig.cas.client.validation.AbstractUrlBasedTicketValidator.validate(AbstractUrlBasedTicketValidator.java:188)
>>        at
>>
>> org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:132)
>>        at
>>
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
>>        at
>>
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
>>        at
>>
>> org.jasig.cas.client.session.SingleSignOutFilter.doFilter(SingleSignOutFilter.java:99)
>>        at
>>
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
>>        at
>>
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
>>        at
>>
>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
>>        at
>>
>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
>>        at
>>
>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
>>        at
>>
>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
>>        at
>>
>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
>>        at
>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
>>        at
>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
>>        at
>>
>> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
>>        at
>>
>> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
>>        at
>>
>> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
>>        at
>>
>> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
>>        at java.lang.Thread.run(Unknown Source)
>> 17:53:49,817 ERROR XmlUtils,http-8443-Processor24:152 -
>> org.xml.sax.SAXParseException: The reference to entity "ticket" must end
>> with the ';' delimiter.
>> org.xml.sax.SAXParseException: The reference to entity "ticket" must end
>> with the ';' delimiter.
>>        at
>>
>> com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown
>> Source)
>>        at
>> com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLScanner.scanAttributeValue(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanAttribute(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
>> Source)
>>        at
>> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown
>> Source)
>>        at
>> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown
>> Source)
>>        at
>> com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown
>> Source)
>>        at
>> com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown
>> Source)
>>        at
>> org.jasig.cas.client.util.XmlUtils.getTextForElement(XmlUtils.java:150)
>>        at
>>
>> org.jasig.cas.client.validation.Cas20ServiceTicketValidator.parseResponseFromServer(Cas20ServiceTicketValidator.java:76)
>>        at
>>
>> org.jasig.cas.client.validation.AbstractUrlBasedTicketValidator.validate(AbstractUrlBasedTicketValidator.java:188)
>>        at
>>
>> org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:132)
>>        at
>>
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
>>        at
>>
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
>>        at
>>
>> org.jasig.cas.client.session.SingleSignOutFilter.doFilter(SingleSignOutFilter.java:99)
>>        at
>>
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
>>        at
>>
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
>>        at
>>
>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
>>        at
>>
>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
>>        at
>>
>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
>>        at
>>
>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
>>        at
>>
>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
>>        at
>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
>>        at
>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
>>        at
>>
>> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
>>        at
>>
>> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
>>        at
>>
>> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
>>        at
>>
>> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
>>        at java.lang.Thread.run(Unknown Source)
>> 17:53:52,601 ERROR XmlUtils,http-8443-Processor24:152 -
>> org.xml.sax.SAXParseException: The reference to entity "ticket" must end
>> with the ';' delimiter.
>> org.xml.sax.SAXParseException: The reference to entity "ticket" must end
>> with the ';' delimiter.
>>        at
>>
>> com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown
>> Source)
>>        at
>> com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLScanner.scanAttributeValue(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanAttribute(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
>> Source)
>>        at
>>
>> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
>> Source)
>>        at
>> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown
>> Source)
>>        at
>> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown
>> Source)
>>        at
>> com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown
>> Source)
>>        at
>> com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown
>> Source)
>>        at
>> org.jasig.cas.client.util.XmlUtils.getTextForElement(XmlUtils.java:150)
>>        at
>>
>> org.jasig.cas.client.validation.Cas20ServiceTicketValidator.parseResponseFromServer(Cas20ServiceTicketValidator.java:77)
>>        at
>>
>> org.jasig.cas.client.validation.AbstractUrlBasedTicketValidator.validate(AbstractUrlBasedTicketValidator.java:188)
>>        at
>>
>> org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:132)
>>        at
>>
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
>>        at
>>
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
>>        at
>>
>> org.jasig.cas.client.session.SingleSignOutFilter.doFilter(SingleSignOutFilter.java:99)
>>        at
>>
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
>>        at
>>
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
>>        at
>>
>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
>>        at
>>
>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
>>        at
>>
>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
>>        at
>>
>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
>>        at
>>
>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
>>        at
>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
>>        at
>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
>>        at
>>
>> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
>>        at
>>
>> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
>>        at
>>
>> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
>>        at
>>
>> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
>>        at java.lang.Thread.run(Unknown Source)
>> 17:53:52,741  WARN
>> Cas20ProxyReceivingTicketValidationFilter,http-8443-Processor24:150 -
>> org.jasig.cas.client.validation.TicketValidationException: No principal
>> was
>> found in the response from the CAS server.
>> org.jasig.cas.client.validation.TicketValidationException: No principal
>> was
>> found in the response from the CAS server.
>>        at
>>
>> org.jasig.cas.client.validation.Cas20ServiceTicketValidator.parseResponseFromServer(Cas20ServiceTicketValidator.java:82)
>>        at
>>
>> org.jasig.cas.client.validation.AbstractUrlBasedTicketValidator.validate(AbstractUrlBasedTicketValidator.java:188)
>>        at
>>
>> org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:132)
>>        at
>>
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
>>        at
>>
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
>>        at
>>
>> org.jasig.cas.client.session.SingleSignOutFilter.doFilter(SingleSignOutFilter.java:99)
>>        at
>>
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
>>        at
>>
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
>>        at
>>
>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
>>        at
>>
>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
>>        at
>>
>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
>>        at
>>
>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
>>        at
>>
>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
>>        at
>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
>>        at
>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
>>        at
>>
>> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
>>        at
>>
>> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
>>        at
>>
>> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
>>        at
>>
>> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
>>        at java.lang.Thread.run(Unknown Source)
>> 17:53:52,821 ERROR [default],http-8443-Processor24:253 -
>> Servlet.service()
>> for servlet default threw exception
>> org.jasig.cas.client.validation.TicketValidationException: No principal
>> was
>> found in the response from the CAS server.
>>        at
>>
>> org.jasig.cas.client.validation.Cas20ServiceTicketValidator.parseResponseFromServer(Cas20ServiceTicketValidator.java:82)
>>        at
>>
>> org.jasig.cas.client.validation.AbstractUrlBasedTicketValidator.validate(AbstractUrlBasedTicketValidator.java:188)
>>        at
>>
>> org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:132)
>>        at
>>
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
>>        at
>>
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
>>        at
>>
>> org.jasig.cas.client.session.SingleSignOutFilter.doFilter(SingleSignOutFilter.java:99)
>>        at
>>
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
>>        at
>>
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
>>        at
>>
>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
>>        at
>>
>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
>>        at
>>
>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
>>        at
>>
>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
>>        at
>>
>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
>>        at
>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
>>        at
>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
>>        at
>>
>> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
>>        at
>>
>> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
>>        at
>>
>> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
>>        at
>>
>> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
>>        at java.lang.Thread.run(Unknown Source)
>> -----------------------------------------------------
>> What does this mean ?
>>
>>
>> The exception makes it pretty clear that the url you provide on login
>> does
>> not match the url provided at validation.  Check your configuration.
>> -Scott Battaglia
>> PGP Public Key Id: 0x383733AA
>> LinkedIn: http://www.linkedin.com/in/scottbattaglia
>>
>> On Tue, Jul 22, 2008 at 5:36 PM, SMallik <[EMAIL PROTECTED]>
>> wrote:
>>
>> >
>> >
>>
>> --
>> View this message in context:
>> http://www.nabble.com/Authentication-exception-%2B-SSOut-problem-tp18593123p18600663.html
>> Sent from the CAS Users mailing list archive at Nabble.com.
>>
>> _______________________________________________
>> Yale CAS mailing list
>> [email protected]
>> http://tp.its.yale.edu/mailman/listinfo/cas
>>
> 
> _______________________________________________
> Yale CAS mailing list
> [email protected]
> http://tp.its.yale.edu/mailman/listinfo/cas
> 
> 

-- 
View this message in context: 
http://www.nabble.com/Authentication-exception-%2B-SSOut-problem-tp18593123p18615842.html
Sent from the CAS Users mailing list archive at Nabble.com.

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