src/main/java/org/imsglobal/lti2/LTI2Servlet.java
public void doErrorJSON(HttpServletRequest request,HttpServletResponse response,
			IMSJSONRequest json, String message, Exception e)
		throws java.io.IOException
	{
		if (e != null) {
			M_log.log(Level.WARNING, e.getLocalizedMessage(), e);
		}
        M_log.info(message);
		String output = IMSJSONRequest.doErrorJSON(request, response, json, message, e);
System.out.println(output);
    }
public void doErrorJSON(HttpServletRequest request,HttpServletResponse response,
			IMSJSONRequest json, String message, Exception e)
		throws java.io.IOException
	{
		if (e != null) {
			M_log.log(Level.WARNING, e.getLocalizedMessage(), e);
		}
        M_log.info(message);
		String output = IMSJSONRequest.doErrorJSON(request, response, json, message, e);
System.out.println(output);
    }
/* IMS JSON version of Errors