@Deprecated public interface SingleThreadModel
If a servlet implements this interface, you are guaranteed that no two threads will execute concurrently in
service method. The servlet container can make this guarantee by synchronizing access to a
single instance of the servlet, or by maintaining a pool of servlet instances and dispatching each new request to a
Note that SingleThreadModel does not solve all thread safety issues. For example, session attributes and static variables can still be accessed by multiple requests on multiple threads at the same time, even when SingleThreadModel servlets are used. It is recommended that a developer take other means to resolve those issues instead of implementing this interface, such as avoiding the usage of an instance variable or synchronizing the block of the code accessing those resources. This interface is deprecated in Servlet API version 2.4.
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