title: Play! Framework: Reuse of instances over multiple requests
body: <p>I develop an application using the Play! Framework which makes heavy use of the javax.script Package, including the ScriptEngine. As ScriptEngines are expensive to create and it would make sense to use them across multiple requests (I don't bother to create multiple ScriptEngines, one per Thread - at least i won't create ScriptEngines for each Request over and over).</p>
  
  <p>I think this case is not restriced to ScriptEngines, there might be something in the framework I'm not aware of to handle such cases.</p>
  
  <p>Thank you for any ideas you have!
  Malax</p>