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
{
			if ( in != null )
			{
				try
				{
					in.close( );
				}
				catch ( IOException e )
				{
				}
			}
		}
		image = new Image( null, in );
		if ( image != null )
		{
			getImageRegistry( ).put( key, image );
			if ( DesignerConstants.TRACING_IMAGE_MANAGER_IMAGE_ADD )
			{
				System.out.println( "Image Manager >> " + key + " added" ); 
			}
		}
		return image;
	}
	/**
	 * Remove cached image from map
	 * 
	 * @param key
	 *            The key of map.
	 */
	public void removeCachedImage( String key )