https://issues.apache.org/bugzilla/show_bug.cgi?id=51277

             Bug #: 51277
           Summary: NPE during the form authentication when
                    form-login-config is missed
           Product: Tomcat 7
           Version: 7.0.12
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Catalina
        AssignedTo: dev@tomcat.apache.org
        ReportedBy: michael_fur...@hotmail.com
    Classification: Unclassified


Created attachment 27075
  --> https://issues.apache.org/bugzilla/attachment.cgi?id=27075
Log from a browser

Hi!
There is NPE during the form authentication when form-login-config is missed

I missed form-login-config by mistake (converted it from the BASIC):

  <login-config>
    <auth-method>FORM</auth-method>
    <realm-name>Tomcat Manager Application</realm-name>
  </login-config>
Unfortunately I get NPE (see below and attached).
I do understand that Form authentication can not work, but I think NPE is bad
output.
I think better is HTTP 500.

Best regards,
   Michael


java.lang.NullPointerException
   
org.apache.catalina.authenticator.FormAuthenticator.forwardToLoginPage(FormAuthenticator.java:373)
   
org.apache.catalina.authenticator.FormAuthenticator.authenticate(FormAuthenticator.java:267)
   
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:539)
   
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
    org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:395)
    org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:250)
   
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
   
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
   
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
   
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    java.lang.Thread.run(Thread.java:662)

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