bundles/org.eclipse.core.expressions/plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.0"?>
<plugin>
   
     <extension-point id="propertyTesters" name="%propertyTesterExtensionPoint" schema="schema/propertyTesters.exsd"/>
     <extension-point id="definitions" name="%defintionsExtensionPoint" schema="schema/definitions.exsd"/>
 
     <extension
           point="org.eclipse.core.expressions.propertyTesters">
        <propertyTester
              id="org.eclipse.core.expressions.bundlePropertyTester"
              type="org.eclipse.core.runtime.Platform"
              namespace="org.eclipse.core.runtime"
              properties="product,isBundleInstalled,bundleState"
              class="org.eclipse.core.internal.expressions.propertytester.PlatformPropertyTester">
        </propertyTester>
     </extension>

</plugin>