Hi, I have seen a strange threading behaviour in catalina engine. For servlets that a) Dont implement SingleThreadModel b) Dont synchronize over resources c) Dont have service methods synchronized,
the server serves 2 concurrent requests to 2 clients requesting the same URL sequentially. Suppose the following servlet is mapped to /servlet/ThreadTest. When i invoke from 2 clients http://myserver/servlet/ThreadTest?foo1=bar1&foo2=bar2 and http://myserver/servlet/ThreadTest?foo2=bar2&foo1=bar1 respectively the server seems to spawn 2 threads running the service method of the servlet as expected. However when a invoke the follwing 2 urls (or in general IDENTICAL URLS) e.g. http://myserver/servlet/ThreadTest?foo1=bar1&foo2=bar2 and http://myserver/servlet/ThreadTest?foo1=bar1&foo2=bar2 respectively then the threads (thread?) run as if i had synchronized the service method. This looks like a bug, here is the source of the simple servlet. The servlet is as follows.... /*****************************************************************/ import javax.servlet.*; import javax.servlet.http.*; public class ThreadTest extends HttpServlet { public void init(ServletConfig config) throws ServletException { super.init(config); } protected void processRequest(HttpServletRequest,HttpServletResponse response) throws ServletException, java.io.IOException { response.setContentType("text/html"); System.out.println("In the begin damnit"); try { Thread.sleep(10000); } catch (Exception e) {} } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, java.io.IOException { processRequest(request, response); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, java.io.IOException { processRequest(request, response); } } -- Achilleus Mantzios S/W Engineer IT dept Dynacom Tankers Mngmt tel: +30-10-8981112 fax: +30-10-8981877 email: [EMAIL PROTECTED] [EMAIL PROTECTED] -- To unsubscribe: <mailto:[EMAIL PROTECTED]> For additional commands: <mailto:[EMAIL PROTECTED]> Troubles with the list: <mailto:[EMAIL PROTECTED]>
