title: c3p0-0.9.5.2 Statement unwrap cause abstractmethoderror
body: <p>I use c3p0 version 0.9.5.1. The unwrap() method bug with this error :</p>
  
  <blockquote>
    <p>java.lang.AbstractMethodError: Method
    com/mchange/v2/c3p0/impl/NewProxyStatement.unwrap(Ljava/lang/Class;)Ljava/lang/Object;
    is abstract at
    com.mchange.v2.c3p0.impl.NewProxyStatement.unwrap(NewProxyStatement.java)</p>
  </blockquote>
  
  <p>This is my code :</p>
  
  <pre><code>com.mysql.jdbc.Statement stm =  proxyStatement.unwrap(com.mysql.jdbc.Statement.class)
  </code></pre>
  
  <p>I saw some post said that it should work since 0.9.5. 
  Is it still a bug? </p>
  
  <p>How can I get the original Statement/Connection from c3p0 Statement/Connection then? 
  Thanks a lot</p>