title: Query String parameters returns null in wowza
body: <p>In wowza application, trying to get querystring parameters. But it always returns empty. My url is this one</p>
  
  <pre><code>rtmp://localhost:1935/myapp/?79ab25d0-770f-427a-ab2f-27e62eeb9e3b_km
  rtmp://localhost:1935/myapp/?u=km
  </code></pre>
  
  <p>In both cases its always return empty. My code is as below</p>
  
  <pre><code>String querystring = stream.getClient().getQueryStr();
  </code></pre>
  
  <p>I just copied application.xml of vod and only replaced application name VOD to myapp, rest it is same of application.xml of vod.</p>
  
  <p>And using smil file to play videos but that in that case it throws this error</p>
  
  <pre><code>MediaReaderH264.open[myapp/_definst_]: Not found: C:/Program Files (x86)/Wowza Media Systems/Wowza Streaming Engine 4.7.5/content/.: java.io.FileNotFoundException: C:\Program Files (x86)\Wowza Media Systems\Wowza Streaming Engine 4.7.5\content (Access is denied)|at java.io.RandomAccessFile.open0(Native Method)|at java.io.RandomAccessFile.open(Unknown Source)|at java.io.RandomAccessFile.&lt;init&gt;(Unknown Source)|at com.wowza.io.WowzaRandomAccessFile.&lt;init&gt;(WowzaRandomAccessFile.java:12)|at com.wowza.io.DirectRandomAccessReader.open(DirectRandomAccessReader.java:236)|
  </code></pre>
  
  <p>However full access is given to content folder and all files in this folder.</p>