tests/org.eclipse.e4.languages.javascript.registry.test/plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.4"?>
<plugin>
   <extension
         point="org.eclipse.equinox.http.registry.servlets">
      <servlet
            alias="/jsHello"
            class="org.eclipse.e4.javascript.registry.JavaScriptFactory:somePackage.createServlet">
         <init-param
               name="test"
               value="Yee haw">
         </init-param>
      </servlet>
   </extension>

</plugin>