Maximum number of parameter passed in a post

Question

I get this error:

Exception during request processing:
Caused by javax.servlet.ServletException with message:
\"Parameter count exceeded allowed maximum: 512         


        

Answer 1

You need to paste the following snippet in your standalone.xml of Jboss server :

Focus on HTTP Listener tag with max-parameter value is what make the difference. The Default value for this field is:-

org.apache.tomcat.util.http.Parameters.MAX_COUNT=1000

This was done as a remedy to the hashmap collision denial of service attack as discussed here