Springboot some problems in the process of integrating JSP

A wonderful null pointer exception appears

Java.lang.NullPointerException:null at Org.apache.catalina.authenticator.AuthenticatorBase.getJaspicProvider ( authenticatorbase.java:1192) at Org.apache.catalina.authenticator.AuthenticatorBase.invoke ( authenticatorbase.java:465) at Org.apache.catalina.core.StandardHostValve.invoke (standardhostvalve.java:140) at Org.apache.catalina.valves.ErrorReportValve.invoke (errorreportvalve.java:79) at Org.apache.catalina.core.StandardEngineValve.invoke (standardenginevalve.java:87) at Org.apache.catalina.connector.CoyoteAdapter.service (coyoteadapter.java:349) at Org.apache.coyote.http11.Http11Processor.service (http11processor.java:783) at Org.apache.coyote.AbstractProcessorLight.process (abstractprocessorlight.java:66) at Org.apache.coyote.abstractprotocol$connectionhandler.process (abstractprotocol.java:798) at Org.apache.tomcat.util.net.nioendpoint$socketprocessor.dorun (nioendpoint.java:1434) at Org.apache.tomcat.util.net.SocketProcessorBase.run (socketprocessorbase.java:49) at Java.util.concurrent.ThreadPoolExecutor.runWorker (threadpoolexecutor.java:1142) at Java.util.concurrent.threadpoolexecutor$worker.run (threadpoolexecutor.java:617) at Org.apache.tomcat.util.threads.taskthread$wrappingrunnable.run (taskthread.java:61) at Java.lang.Thread.run ( thread.java:745)

Just beginning to see this mistake, a face stuffy force, after looking for a post https://stackoverflow.com/questions/38802437/ Upgrading-spring-boot-from-1-3-7-to-1-4-0-causing-nullpointerexception-in-authen

See that it may be a problem with the package, because there is no local problem

Later with AuthConfigFactoryImpl this class, to find, springboot in the Tomcat there is such a class, JAVAX-API also have, so I tried to javaee-api the package to exclude, you can

  < exclusion >                    < groupId >javax</groupId>                    <Artifactid  >javaee-api</artifactid>                </exclusion  >

Springboot some problems in the process of integrating JSP