Bug 120317 Set "dimension" property to 3D in "properties" view, error appears in layout editor.
Description: Set "dimension" property to 3D in "properties" view, error appears in layout editor. Steps to reproduce: 1. Add a 2D chart in property editor. 2. Set its dimension property to "three-dimension" in properties view. 3. Error appears in chart.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/metadata/ExtensionLoader.java
{	
	/**
	 * Logger instance.
	 */
	private static Logger logger = Logger.getLogger( ExtensionLoader.class
			.getName( ) );
	private String extensionPointer = null;
	/**
	 * Constructor with the id of extension pointer which the extension this
	 * extension loader loads implements.
	 * 
	 * @param extensionPointer
	 *            the id of extension pointer
	 */
	ExtensionLoader( String extensionPointer )
	{
		this.extensionPointer = extensionPointer;
	}
	abstract void loadExtension( IExtension extension )
			throws ExtensionException, MetaDataException;
	/**
	 * Loads the extensions in plug-ins, and add them into metadata dictionary.
	 * 
	 * @throws MetaDataParserException
	 *             if error is found when loading extension.
	 */