Rajesh Sinha created JBWEB-270: ---------------------------------- Summary: Exception in JBoss with SSO Key: JBWEB-270 URL: https://issues.jboss.org/browse/JBWEB-270 Project: JBoss Web Issue Type: Bug Security Level: Public (Everyone can see) Reporter: Rajesh Sinha Assignee: Remy Maucherat Hi, Below mentioned is a stack trace of the exception which i am getting while accessing a particular JSP page through a SSO(Single Sign On) enabled server. Surprisingly it works completely fine when i switch SSO off.Attached is the JSP which i am referring to. ERROR - [] [ajp-10.248.0.101-9009-8] - Cannot append null value java.lang.NullPointerException at org.apache.coyote.ajp.AjpMessage.appendString(AjpMessage.java:242) at org.apache.coyote.ajp.AjpMessage.appendBytes(AjpMessage.java:178) at org.apache.coyote.ajp.AjpProcessor.prepareResponse(AjpProcessor.java:980) at org.apache.coyote.ajp.AjpProcessor.action(AjpProcessor.java:494) at org.apache.coyote.Response.action(Response.java:186) at org.apache.coyote.Response.sendHeaders(Response.java:386) at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:333) at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:314) at org.apache.catalina.connector.Response.flushBuffer(Response.java:557) at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:344) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:567) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330) at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:436) at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:384) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:451) at java.lang.Thread.run(Thread.java:662) -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira