Hi,
In article <[EMAIL PROTECTED]>,
Wed, 29 Sep 2004 15:54:43 +0100,
Mamadou Cisse <[EMAIL PROTECTED]> wrote:
mamadou> In doPost a command object is created from the parameter request. This
mamadou> command object does some processing and then returns a String as URL to
mamadou> the doPost method which in turn tries to forward the call. The
mamadou> pseudocode looks like:
mamadou> {pseudocode ---
mamadou> Command command = CommandFactory.getCommand(request), //1
mamadou> String urlStr = command.execute(); //2
mamadou> RequestDispatcher disp = request.getRequestDispatcher(urlStr); //3
mamadou> disp.forward(request, response); //4
mamadou> --- pseudocode}
mamadou> On the line //4 there is a NullPointerException. The reason is that the
mamadou> originalDispatcher in the RequestDispatcher instance is null.
ServletRequest#getRequestDispatcher(String) returns null
if the servlet container cannot return a RequestDispatcher.
So, I think, the point is that the urlStr value returned from command.execute()
is valid or not.
You might separate the test into some parts like:
public void testCommand {
Command command = CommandFactory.getCommand(request);
assertEquals("expectedUrl", command.execute());
}
public void testDispatch {
assertNotNull(request.getRequestDispatcher("expectedUrl"));
}
I guess testCommand() fails and/or your expectedUrl is not valid
for your container.
Hope this helps,
----
Kazuhito SUGURI
mailto:[EMAIL PROTECTED]
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