title: Scope of System.setProperty
body: <p>What's the scope of <a href="http://developer.android.com/reference/java/lang/System.html#setProperty(java.lang.String,%20java.lang.String)" rel="noreferrer">System.setProperty</a> in Android? </p>
  
  <p>If I set a property (say <code>System.setProperty("http.keepAlive", "false")</code>), does it affect all apps in the system, the current app, the current task or the current thread only?</p>
  
  <p>Where is this documented?</p>