Request header is too large

add/update at the tomcat server xml

<Connector port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" maxHttpHeaderSize="65536" maxPostSize="4194304"  
               URIEncoding="UTF-8"/>

the proper solution is to add the following property under http-listener:

<property name="maxPostSize" value="" />