title: Proguard obfuscation and generic methods
body: <p>I'm trying to obfuscate an Android App with ProGuard. </p>
  
  <p>Here I have a class</p>
  
  <pre><code>public class Book implements DBbinded
  </code></pre>
  
  <p>And a generic method </p>
  
  <pre><code>private void storeDBObjects(ArrayList&lt;? extends DBbinded&gt; dbObjects)
  </code></pre>
  
  <p>The call of this method throws an java.lang.ClassCastException: java.util.LinkedHashMap after obfuscation. What should I write into proguard.properties to fix this?</p>