"David M. Holmes" wrote:
> OK I have a custom tag which passes the request object to a handler class, which is
>threaded, to
> do some background processing. If the handler class is in the webapp\classes
>directory it works
> fine. If it is in the system classpath I get NullPointerExceptions when trying to
>invoke any
> method on the request object. Is the request object out of scope. Any help would be
>appreciated.
>
The request and response objects are only valid for the duration of the call to the
servlet's
service() method. Any attempt to reference them outside of that time frame (such as
from another
thread in your scenario) will result in undefined behavior.
The solution is to copy everything you need from the request object, while still
inside the
service() method, into some private object of your own that is then referenced from
the background
thread.
>
> Dave
>
Craig McClanahan
