To get the defining class:

http://groups.google.com/groups?selm=T3jO7.115605%248a.83958584%40news1.rsm1.occa.home.com

The Singleton idiom, double-checked locking, etc.:

http://www-106.ibm.com/developerworks/java/library/j-dcl.html

JSP introduction:

http://java.sun.com/webservice/docs/ea1/tutorial/doc/JSPIntro.html

JSP implicit objects:

http://java.sun.com/j2ee/tutorial/1_3-fcs/doc/JSPIntro7.html

On ThreadLocal:

http://www-106.ibm.com/developerworks/java/library/j-threads3.html

(Think there is a similar, but better, article on an IBM site.)

Why constructors are not inherited:

  - because Object has a no-argument constructor; if it were possible
    to inherit constructors, all classes (since all inherit from
    Object) will have a no-argument constructor, even though this is
    inappropriate for some objects.
    
  - ??? doesn't seem convincing

Where to get j2ee.jar:

http://java.sun.com/j2ee/1.4/download.html; get the Sun Java System
Application Server Platform.  (Also get the Platform API Documentation
if you wants the docs.)

HOW TO SET CONFIG OPTIONS:



SET (web.xml, for the application):

  <web-app>
    <context-param>
      <param-name>foo</param-name>
      <param-value>hello</param-value>
    </context-param>
    ...
  </web-app>
  
GET (.jsps):

  application.getInitParameter("foo");
  
GET (HttpServlet):

  getServletContext().getInitParameter("foo"); // not tested, actually
  


SET (web.xml, for the servlet):

  <web-app>
    <servlet>
      <param-name>foo</param-name>
      <param-value>hello</param-value>
    </servlet>
  </web-app>
  
GET (.jsps):

  (Not possible--?)

GET (HttpServlet):

  getServletConfig().getInitParameter("foo");



SET (ServletContext.setAttribute()):

  context.setAttribute("foo", "Hello");
  
GET (.jsps):

  application.getAttribute("foo");
  
GET (HttpServlet):

  getServletConfig().getAttribute("foo");