Bug 140620 Chart scripting errors are ignored
Write a chart with an invalid script, the execution simply ignores the script. This makes it difficult to debug scripting. The error message is also not precise and needs improvements.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/device/IDeviceRenderer.java
void after( ) throws ChartException;
	/**
	 * A notification sent to the device to free all allocated system resources.
	 */
	void dispose( );
	/**
	 * Notifies a device renderer to present an exception in its context
	 * 
	 * @param ex
	 *            The exception to be presented
	 */
	void presentException( Exception ex );
	/**
	 * Provides the locale to device renderer implementations as needed to
	 * retrieve localized resources for presentation.
	 * 
	 * @return The locale to be used
	 * @deprecated
	 */
	Locale getLocale( );
	
	/**
	 * Provides the locale to device renderer implementations as needed to
	 * retrieve localized resources for presentation.
	 * 
	 * @return The locale to be used
	 * @since 2.1
	 */
	ULocale getULocale( );
}