Bug 214714 [Regression] Can't preview SVG image in Report Template dialog when new a report design [02]
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ThumbnailBuilder.java
image = new Image( null, fileName );
			previewCanvas.loadImage( image );
			btnRemove.setEnabled( true );
		}
	};
	private void removeImage( )
	{
		
		if ( image != null )
		{
			image.dispose( );
			image = null;
		}
		previewCanvas.clear( );
		hasThumbnail = false;
		btnRemove.setEnabled( false );
	}
	private boolean checkExtensions( String fileName )
	{
		for ( int i = 0; i < IMAGE_TYPES.length; i++ )
		{
			if ( fileName.toLowerCase( ).endsWith( IMAGE_TYPES[i] ) )
			{
				return true;
			}
		}
		return false;
	}
}