java.lang.IllegalArgumentException: The servlets named [X] and [Y] are both mapped to the url-pattern [/url] which is not permitted

Question

I tried to add this servlet

package com.classmgt.servlet;

@WebServlet(\"/ControllerServlet\")
public class ControllerServlet extends HttpServlet {}
         


        

Answer 1

java.lang.IllegalArgumentException: The servlets named...

I fetched this cause where I create new servlet in different package (name='syncro'). My servlet located in syncro.SynchronizeServlet And when I add information about this servlet in deployment descriptor (web.xml) I catch error: IllegalArgumentException

Example of incorrect descriptor part:

    
    SynchronizeServlet
    SynchronizeServlet
    SynchronizeServlet
  
  
    SynchronizeServlet
    /SynchronizeServlet
    /SynServlet
  

When I add correct path for servlet - error disappeared. Correct desc below:

    
    syncro.SynchronizeServlet
    syncro.SynchronizeServlet
    syncro.SynchronizeServlet
  
  
    syncro.SynchronizeServlet
    /SynchronizeServlet
    /SynServlet
  

==> 73!