Bug 212246 Browsers keep poping up when click the series with interactivity Focus-Hyperlink [13]
chart/org.eclipse.birt.chart.device.extension/src/org/eclipse/birt/chart/device/image/JavaxImageIOWriter.java
_bo = (Bounds) oValue;
		}
		else if ( sProperty.equals( IDeviceRenderer.CACHED_IMAGE ) )
		{
			_img = (Image) oValue;
		}
		else if ( sProperty.equals( IDeviceRenderer.FILE_IDENTIFIER ) )
		{
			_oOutputIdentifier = oValue;
		}
		else if ( sProperty.equals( IDeviceRenderer.CACHE_ON_DISK ) )
		{
			ImageIO.setUseCache( ( (Boolean) oValue ).booleanValue( ) );
		}
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see javax.imageio.event.IIOWriteWarningListener#warningOccurred(javax.imageio.ImageWriter,
	 *      int, java.lang.String)
	 */
	public void warningOccurred( ImageWriter source, int imageIndex,
			String warning )
	{
		logger.log( ILogger.WARNING, warning );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.chart.device.IDeviceRenderer#presentException(java.lang.Exception)