title: How to create simple NFC program using java?
body: <p>I'm a newbie learning java and nfc. Actually I really need some help about my homework "NFC programming".
  I try this tutorial <a href="http://open-nfc.org/wp/editions/sdk-edition/creating-a-java-example/">http://open-nfc.org/wp/editions/sdk-edition/creating-a-java-example/</a> and I still get this error msg:</p>
  
  <pre><code>Start failed !
  NfcException : Error while starting the NFC Manager - Caused by NFC error DRIVER
  at org.opennfc.NfcManager.start(Unknown Source)
  at org.opennfc.NfcManager.getInstance(Unknown Source)
  at example.Example.main(Example.java:26)
  Exception in thread "main" java.lang.IllegalStateException
  at org.opennfc.NfcManager.stop(Unknown Source)
  at example.Example.main(Example.java:36)
  </code></pre>
  
  <p>Actually, what I want to run is this example code by open-nfc</p>
  
  <pre><code>NfcManager mgt = NfcManager.getInstance(null);
  try {
    System.out.println(mgt.getProperty("open_nfc.version"));
    System.out.println(mgt.getProperty("nfcc.firmware_version"));
  } finally {
    try {
      mgt.stop();
    } catch(NfcException e) {
      System.out.println("Error :" + e.getMessage());
    }
  }
  </code></pre>
  
  <p>I've already start the connection center, nfc simulator, and server porting. And I have a device QPROX QP3000, already connected to my PC. I'm using eclipse juno and windows 7.</p>