<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.0"?>
<plugin
   id="WSDLValidator"
   name="WSDL Validator Plug-in"
   version="1.0.0">

  <runtime>
    <library name="wsdlvalidator.jar"/>
  </runtime>

  <requires>
    <import plugin="org.eclipse.ui"/>
    <import plugin="org.eclipse.core.runtime"/>
    <import plugin="org.eclipse.core.resources"/>
  </requires>
</plugin>

Example 1: Plug-in descriptor.