WebLogic Server internal server error
<p>When I deployed a project in Apache Tomcat 6.0 it is working fine. When I deployed a same project in WebLogic Server 10.3 it's showing an error:</p>

<pre><code>Error 500--Internal Server Error

javax.servlet.ServletException: [HTTP:101249][weblogic.servlet.internal.WebAppServletContext@ae43b8 - appName: '_appsdir_ab_dir', name: 'ab', context-path: '/ab', spec-version: 'null']: Servlet class FirstServlet for servlet FirstServlet could not be loaded because the requested class was not found in the classpath .
java.lang.UnsupportedClassVersionError: FirstServlet : Unsupported major.minor version 51.0.
</code></pre>
