title: Getting Method org.postgresql.jdbc4.Jdbc4Connection.isValid(int) is not yet implemented
body: <p>I created a new Play 2.5.3 project and I'm getting this error.</p>
  
  <p>I read in another answer the driver was out of date, so I added what I believe to be the latest driver like this:</p>
  
  <p>I added the postgress driver dependency like this:</p>
  
  <pre><code>libraryDependencies ++= Seq(
    javaJdbc,
    cache,
    javaWs,
    "postgresql" % "postgresql" % "9.1-901-1.jdbc4"
  )
  </code></pre>
  
  <p>But still getting the error.  Any idea how to fix this?</p>