Created attachment 27075 [details] 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)
Check the response again. You do get a 500 response. I agree that the stack traced is not ideal. I have modified this to provide a more useful error message. The fix has been made to 7.0.x and will be included in 7.0.15 onwards.