Bug 167395 Current version BIRT can't support SVG well.
step: 1.Creat a new report with a chart in svg form. 2.preview the report and save the svg image to a file "test.svg". 3.Creat another new report. Add an image to the report. The dialog "Edit Image Item" will diaplay. 4.In the dialog "Edit Image Item",choose "Embedded image". Press the button "Add Image" to add the "test.svg". choose the "test.svg" and press the button "Insert", exception happens. BIRT code version: 2006.12.11 afternoon.
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/ImageManager.java
* Gets the image by the given URI
	 * 
	 * @param uri
	 *            the url of the image file
	 * 
	 * @return Returns the image,or null if the url is invalid or the file
	 *         format is unsupported.
	 */
	public Image getImage( String uri, boolean refresh )
	{
		Image image;
		URL url = null;
		try
		{
			url = generateURL( uri );
			if ( url == null )
			{
				return null;
			}
			if ( !refresh && invalidUrlList.contains( url.toString( ) ) )
			{
				return null;
			}
			String key = url.toString( );
			image = getImageRegistry( ).get( key );
			if ( image == null )
			{
				image = loadImage( url );
			}
			if ( image == null )