Bug 27530 [Properties view] CopyPropertyAction does not dispose clipboard
build I20021127 CopyPropertyAction allocates a Clipboard but does not dipose it. Should add a dispose method here, and call it from PropertySheetPage.dispose().
bundles/org.eclipse.ui.views/src/org/eclipse/ui/views/properties/PropertySheetPage.java
}
	/**
	 * Sets the given property source provider as
	 * the property source provider
	 * <p>
	 * Calling this method is only valid if you are using
	 * this page's defualt root entry
	 * </p>
	 * @param newProvider the property source provider
	 */
	public void setPropertySourceProvider(IPropertySourceProvider newProvider) {
		provider = newProvider;
		if (rootEntry instanceof PropertySheetEntry) {
			((PropertySheetEntry) rootEntry).setPropertySourceProvider(provider);
			
			viewer.setRootEntry(rootEntry);
		}
	}
	/**
	 * Sets the given entry as the model for the page.
	 *
	 * @param entry the root entry
	 */
	public void setRootEntry(IPropertySheetEntry entry) {
		rootEntry = entry;
		if (viewer != null)
			
			viewer.setRootEntry(rootEntry);
	}
}