title: How do I upgrade an existing NetBeans Java EE 6 Web project to Java EE 7?
body: <p>The project uses JavaServer Faces and JPA. NetBeans 7.3.1 IDE does not allow to change the Java EE version.</p>
  
  <p>I already found this question:</p>
  
  <p><a href="https://stackoverflow.com/questions/3439865/how-do-i-upgrade-an-existing-enterprise-project-from-java-ee5-to-java-ee-6-in-ne">How do I upgrade an existing enterprise project from Java EE5 to Java EE 6 in Netbeans (6.9)</a></p>
  
  <p>tries to apply the changes as described. I have updated project.properties.</p>
  
  <pre><code>endorsed.classpath=\
      ${libs.javaee-endorsed-api-7.0.classpath}
  </code></pre>
  
  <p>...</p>
  
  <pre><code>j2ee.platform=1.7-web
  </code></pre>
  
  <p>...</p>
  
  <pre><code>javac.source=1.7
  javac.target=1.7
  </code></pre>