tests/org.eclipse.core.tests.runtime/Plugin_Testing/registry/testNamespace/1/plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.2"?>
<plugin id="testNamespace1" name="TestNamespace Plug-in1" version="1.0.0" provider-name="">
  
    <extension-point id="org.abc.xptNS1" name="Label xptNS1" schema="schema/xptNS1.exsd"/>
    
  	<extension point="org.abc.xptNS1" id="org.abc.extNS1">
	</extension>
     
</plugin>