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<h2 title="Interface SingleThreadModel" class="title">Interface SingleThreadModel</h2>
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<pre>public interface <span class="typeNameLabel">SingleThreadModel</span></pre>
<div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span>
<div class="deprecationComment">As of Java Servlet API 2.4, with no direct replacement.</div>
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<div class="block">Ensures that servlets handle only one request at a time. This interface has
 no methods.
 <p>
 If a servlet implements this interface, you are <i>guaranteed</i> that no two
 threads will execute concurrently in the servlet's <code>service</code>
 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
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 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.</div>
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