function _handleSuccess(oEvent, bHandleValidation) {
		if (!oControlMessageProcessor) {
			oControlMessageProcessor = new ControlMessageProcessor();
		}
		if (bHandleValidation) {
			var oElement = oEvent.getParameter("element");
			var sProperty = oEvent.getParameter("property");
			var sTarget = oElement.getId() + '/' + sProperty;
			var sProcessorId = oControlMessageProcessor.getId();

			if (mAllMessages[sProcessorId] && mAllMessages[sProcessorId][sTarget]) {
				_removeMessages(mAllMessages[sProcessorId][sTarget], true);
			}
		}
		oEvent.cancelBubble();
	}
handle validation success

@param {object} oEvent The Event object
@param {boolean} bHandleValidation Wether validation success should be handled or not.
@private