plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.4"?>
<plugin>
   <extension
         point="org.eclipse.ui.menus">
      <menuContribution
            allPopups="false"
            locationURI="toolbar:org.eclipse.ui.main.toolbar">
         <toolbar
               id="wessbas.ui.toolbar">
            <command
                  commandId="org.fortiss.pmwt.wex.ui.eclipse.commands.ShowUI"
                  icon="resources/icons/eclipse_16x16.png"
                  id="ShowUI"
                  label="Show WESSBAS UI"
                  style="push">
            </command>
         </toolbar>
      </menuContribution>
   </extension>
   <extension
         point="org.eclipse.ui.handlers">
   </extension>
   <extension
         point="org.eclipse.ui.commands">
      <command
            defaultHandler="org.fortiss.pmwt.wex.ui.eclipse.handler.ShowUIHandler"
            id="org.fortiss.pmwt.wex.ui.eclipse.commands.ShowUI"
            name="Show UI">
      </command>
   </extension>

</plugin>