opertiesProvider(PropertyEvaluator, String, File);
    public static abstract class DelegatingPropertyProvider implements PropertyProvider {
        protected DelegatingPropertyProvider(PropertyProvider);
        protected final void setDelegate(PropertyProvider);
        public final Map getProperties();
        public final void addChangeListener(ChangeListener);
        public final void removeChangeListener(ChangeListener);
    }
}
</pre>

<h2>Java SE Project Metadata</h2>
<p>
 A metadata format change 