<?xml version="1.0" encoding="UTF-8"?>
<plugin>

   <extension
         id="product"
         name="EAP Rental Product"
         point="org.eclipse.core.runtime.products">
      <product
            name="Rental"
            application="org.eclipse.e4.ui.workbench.swt.E4Application">
            <property name="applicationXMI" 
               value="com.opcoach.training.e4.rental.eap/Application.e4xmi">
         </property>
         <property
               name="clearPersistedState"
               value="true">
         </property>
         <property
               name="applicationCSS"
               value="platform:/plugin/com.opcoach.training.e4.rental.eap/css/initial.css">
         </property>
      </product>
   </extension>

</plugin>

<?xml version="1.0" encoding="UTF-8"?>
<plugin>

   <extension
         id="product"
         name="EAP Rental Product"
         point="org.eclipse.core.runtime.products">
      <product
            name="Rental"
            application="org.eclipse.e4.ui.workbench.swt.E4Application">
            <property name="applicationXMI" 
               value="com.opcoach.training.e4.rental.eap/Application.e4xmi">
         </property>
         <property
               name="clearPersistedState"
               value="true">
         </property>
         <property
               name="applicationCSS"
               value="platform:/plugin/com.opcoach.training.e4.rental.eap/css/initial.css">
         </property>
         <property
               name="appName"
               value="Rental">
         </property>
      </product>
   </extension>

</plugin>

Add application name in product extension
Add application name in product extension
