Invalid character found in method name. HTTP method names must is Tokens__tomcat

Info: At least one JAR is scanned for TLDs yet contained no TLDs. Enable Debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them.
Skipping unneeded JARs during scanning can improve startup time and JSP compilation time. August 15, 2017 10:21:08 a.m. Org.apache.coyote.AbstractProtocol start info: Starting Protocolhandler ["http-nio-8080"] August 15, 201 7 10:21:08 a.m. Org.apache.coyote.AbstractProtocol Start info: Starting Protocolhandler ["ajp-nio-8009"] August 15, 2017 10:21:08 Morning Org.apache.catalina.startup.Catalina Start Info: Server startup in 24549 Ms August 15, 2017 10:21:44 a.m. Org.apache.coyote.htt P11. Abstracthttp11processor Process information: Error parsing HTTP request Header Note:further occurrences of HTTP header parsing ER
Rors'll is logged at the DEBUG level. Java.lang.IllegalArgumentException:Invalid character found in method name. HTTP method names must is tokens at Org.apache.coyote.http11.AbstractNioInputBuffer.parseRequestLine (abstractnioinput Buffer.java:232) at Org.apache.coyote.http11.AbstractHttp11Processor.process (abstracthttp11processor.java:1013) at Org. Apache.coyote.abstractprotocol$abstractconnectionhandler.process (abstractprotocol.java:687) at Org.apache.tomcat.util.net.nioendpoint$socketprocessor.dorun (nioendpoint.java:1520) at Org.apache.tomcat.util.net.nioendpoint$socketprocessor.run (nioendpoint.java:1476) at Java.util.concurrent.ThreadPoolExecutor.runWorker (threadpoolexecutor.java:1145) at Java.util.concurrent.threadpoolexecutor$worker.run (threadpoolexecutor.java:615) at Org.apache.tomcat.util.threads.taskthread$wrappingrunnable.run (taskthread.java:61) at Java.lang.Thread.run ( thread.java:745)

just add the Maxhttpheadersize field to the Server.xml:

<connector uriencoding= "UTF-8" port= "
    8080" protocol= "Org.apache.coyote.http11.Http11NioProtocol" Usebodyencodingforuri= "false"
    enablelookups= "false"
               connectiontimeout= "20000"
               redirectport= "8443" Maxhttpheadersize= "The size you want"/>

<connector port= "8080" executor= "Tomcatthreadpool" protocol= "http/1.1"
     maxthreads=
     "1000" Maxhttpheadersize= "8192"
     minsparethreads= "maxsparethreads="
     acceptcount= "1000
     " maxconnections= "1000" connectiontimeout= "30000" keepalivetimeout= "15000" maxkeepaliverequests= "
     1 "
      tcpnodelay=" "True"
     redirectport= "8443"
     enablelookups= "false"
     uriencoding= "UTF-8"/>