Blank web page rendered when Picketlink Federation global logout is invoked.

Issue

• Blank web page rendered when Picketlink Federation global logout is invoked as follows:-
  • Enter an SP (service provider) URL, which will be redirected to IDP (Identity Provider) login page.
  • On successful login, the focus will be taken back to the SP site.
  • Restart the SP or wait until session expires, however keep the SP site page as it is.
  • Now, click on logout link such that the global logout is invoked.
  • A blank webpage appears instead of redirection to the Picketlink IDP login page and the following exception is thrown:-

  Caused by: org.picketlink.identity.federation.core.exceptions.ProcessingException: PLFED000022: Principal Not Found
        at org.picketlink.identity.federation.PicketLinkLoggerImpl.samlHandlerPrincipalNotFoundError(PicketLinkLoggerImpl.java:1036) [picketlink-jbas7-2.1.9.SP2-redhat-1.jar:2.1.9.SP2-redhat-1]
        at org.picketlink.identity.federation.web.handlers.saml2.SAML2LogOutHandler$SPLogOutHandler.generateSAMLRequest(SAML2LogOutHandler.java:359) [picketlink-core-2.1.9.SP2-redhat-1.jar:2.1.9.SP2-redhat-1]
        at org.picketlink.identity.federation.web.handlers.saml2.SAML2LogOutHandler.generateSAMLRequest(SAML2LogOutHandler.java:89) [picketlink-core-2.1.9.SP2-redhat-1.jar:2.1.9.SP2-redhat-1]
        at org.picketlink.identity.federation.web.process.ServiceProviderBaseProcessor.process(ServiceProviderBaseProcessor.java:186) [picketlink-core-2.1.9.SP2-redhat-1.jar:2.1.9.SP2-redhat-1]
        ... 13 more

• Blank screen rendered after global logout is invoked when session is expired using PicketLink Federation.