Hi Everyone, I seam to have a discovered a problem in Tomcat 4.0 Beta 3 with the ClassLoader. Whenever I try to load a class using another thread other than the servlet's request thread, the class is not found. Here is an example servlet which reproduces this problem. If anyone has any ideas on why this is happening or knows of a possible fix or workaround please let me know. Thank you, Paul Dumais [EMAIL PROTECTED] /**************************************************************************/ // servlet is registered with load-on-startup import java.io.*; import javax.servlet.*; import javax.servlet.http.*; public class LoadingBug extends HttpServlet { public void init() throws ServletException { //new DummyClass(); // uncomment this line and it finds the class Thread thread = new Thread() { public void run() { try { System.out.println("waiting 10 seconds"); sleep(10000); System.out.println("trying to load dummy class"); new DummyClass(); // class not found here } catch (Exception e) { e.printStackTrace(); } } }; thread.start(); } public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { } } class DummyClass { }