title: OSB Java callout to core java class
body: <p>I have a simple java call out to decode a base64 string. The java looks like this</p>
  
  <pre><code>import javax.xml.bind.DatatypeConverter;
  
  public final class DecodeBase64 {
      public static byte[] decode(String base64string) {
          return DatatypeConverter.parseBase64Binary(base64string);
      }
  }
  </code></pre>
  
  <p>Then I was thinking that since <code>DatatypeConverter.parseBase64Binary</code> is static why not call it directly. This way I can avoid having to deploy my jar. </p>
  
  <p>I cannot however seem to find a way to call a core java class from the OSB java callout.</p>
  
  <p>Is this possible? Is it even feasible?</p>