CreateInstanceActionRuleLine cirl = new CreateInstanceActionRuleLine(); ruleLines.add(cirl); RuleLineCollection ruleLinesAssignmentInstance = new RuleLineCollection(cirl.getReadableGuide()); if (!(expressionItemAux instanceof MultipleAssignmentExpression)) { throw new InternalErrorException(new Exception("Unknown expression in creation statement '" + expressionItemAux.toString() + "'"));