autologin Basic_auth jsp

[Roberston Guillaume]

Hello
In a intranet I would like to create a page to "autologin" in another server and so simulate SSO

the other system use Basic Authentication (looks like because a )

so I create a JSP

  <%
/% before we make another authentication to be sure anonymous users cannot use this page %/
 

      String pass =  "test:test";
      
      byte[] arrayByte =  pass.getBytes();
      
        String authorization = new sun.misc.BASE64Encoder().encode(arrayByte);
         response.addHeader("Authorization", "Basic " + authorization);
         
         response.sendRedirect(" <a href="https://www.anotherserver.com/"%29;" target="_blank" rel="nofollow">https://www.anotherserver.com/");</a>
  %>    

But it doesn't work because it always ask me for login/password

If someone has an idea of the correct code to do such a thing

(When i search basic_auth I see more sibject about webservice or how to retrieve information (not setting)

Thanks in advance