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

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.0"?>
<plugin>
   <extension-point id="applications" name="%applicationsName" schema="schema/applications.exsd"/>
   <extension-point id="products" name="%productsName" schema="schema/products.exsd"/>
   <extension-point id="adapters" name="%adaptersName" schema="schema/adapters.exsd"/>
   <extension-point id="preferences" name="%preferencesName" schema="schema/preferences.exsd"/>
   <extension-point id="contentTypes" name="%contentTypesName" schema="schema/contentTypes.exsd"/>

	<extension id="platform-preferences" point="org.eclipse.core.runtime.preferences" name="%preferencesExtPtName">
		<scope name="configuration" class="org.eclipse.core.internal.preferences.ConfigurationPreferences"/>
		<scope name="instance" class="org.eclipse.core.internal.preferences.InstancePreferences"/>
		<scope name="default" class="org.eclipse.core.internal.preferences.DefaultPreferences"/>
	</extension>

	<extension point="org.eclipse.core.runtime.contentTypes">
		<content-type id="text" name="%textContentTypeName" 
			priority="high"
			file-extensions="txt">
			<describer class="org.eclipse.core.internal.content.TextContentDescriber"/>			
			<property name="bom"/>
			<property name="charset"/>
		</content-type>
		<content-type id="xml" name="%xmlContentTypeName" 	
			base-type="org.eclipse.core.runtime.text"
			priority="high"
			file-extensions="xml">			
			<property name="charset" default="UTF-8"/>
			<describer class="org.eclipse.core.internal.content.XMLContentDescriber"/>
		</content-type>
		<!-- a placeholder for setups where JDT's official type is not available -->			
		<content-type id="properties" name="%propertiesContentTypeName" 
			base-type="org.eclipse.core.runtime.text"
			alias-for="org.eclipse.jdt.core.javaProperties"
			file-extensions="properties">
			<property name="charset" default="ISO-8859-1"/>
		</content-type>			
	</extension>		 
</plugin>