title: PCSCException SCARD_E_NO_SERVICE
body: <p>I'm using sun.security.smartcardio library to work with smartcards.
  I've used the example source code in Java suggested by Ludovic Rousseau.
  If I loop that code, when I perform the selection of available card terminals (sun.security.smartcardio.PCSCTerminals.list(Unknown Source)), I have the following exception:</p>
  
  <p>sun.security.smartcardio.PCSCException: SCARD_E_NO_SERVICE</p>
  
  <p>If I restart the application after each use of smartcard, everything works well.
  Anyone knows why it happens in this way?</p>
  
  <p>Thanks for your help</p>
  
  <p>Francesco</p>