ant/org.eclipse.ant.core/plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.0"?>
<plugin>

   <extension-point id="extraClasspathEntries" name="%classpathName" schema="schema/extraClasspathEntries.exsd"/>
   <extension-point id="antTasks" name="%tasksName" schema="schema/antTasks.exsd"/>
   <extension-point id="antTypes" name="%typesName" schema="schema/antTypes.exsd"/>
   <extension-point id="antProperties" name="%propertiesName" schema="schema/antProperties.exsd"/>
   
<!-- Applications -->
   <extension
         id="antRunner"
         point="org.eclipse.core.runtime.applications">
      <application>
         <run
               class="org.eclipse.ant.core.AntRunner">
         </run>
      </application>
   </extension>
<!-- Extra Classpath -->
   <extension
         point="org.eclipse.ant.core.extraClasspathEntries">
      <extraClasspathEntry
            library="lib/antsupportlib.jar">
      </extraClasspathEntry>
   </extension>
    <extension
      	 point="org.eclipse.ant.core.antProperties">
      <antProperty
            name="eclipse.home"
            class="org.eclipse.ant.internal.core.AntPropertyValueProvider">
      </antProperty>
       <antProperty
            name="eclipse.running"
            class="org.eclipse.ant.internal.core.AntPropertyValueProvider">
      </antProperty>
    </extension>
    
	<extension 
		point="org.eclipse.core.runtime.contentTypes"> 
		<content-type  
			id="antBuildFile" 
			name="%antBuildFileContentType.name" 
			base-type="org.eclipse.core.runtime.xml"
			file-names="build.xml"
			file-extensions="macrodef,ent,xml"
			priority="normal"> 
			<describer 
				class="org.eclipse.ant.internal.core.contentDescriber.AntBuildfileContentDescriber">
			</describer> 
		</content-type> 
	</extension>
</plugin>