isThreadSafe Attribute

• Threads are independent processes executing simultaneously.
• Not really.  More often than not, a time-slicing mechanism is involved.
• With multiple accesses to the same JSP, the service method is called simultaneously by multiple threads.
• You must make your JSP thread safe if you want to maintain data integrity over multiple threads.
• Or, you can change the isThreadSafe attribute to false to only allow one thread at a time to enter the service method.
• <%@ page isThreadSafe="true"> default, allows multiple threads.
• <%@ page isThreadSafe="false"> does not allow multiple threads.
• Your best bet is really to make your JSP thread safe by using the synchronized () {} block.

Created by:  Brandan Jones December 20, 2001