Can a JSP be multi-threaded?
Created May 4, 2012
Govind Seshadri By default, the service() methods of all JSP pages execute in a multithreaded fashion.
Each client request is dispatched in a concurrent manner within a separate thread by the
servlet engine. Thus, it is important to synchronize access to any page shared state in
the default scenario.
You can make a page "thread-safe" and have it serve client requests in a single-threaded fashion by setting the page tag's isThreadSafe attribute to false:
<%@ page isThreadSafe="false" %>
This causes the generated servlet to implement the SingleThreadModel interface.