Problem in LDDJ!

I am using LDDJ to create a table ,after complition .There is a error occured like this"unable to build name / index table"

however the desirable table has been created

Please tell me the reason for that error tip

and how to solve the problem, thank you very much!

Here is a scriptlet ,I hope it helps!

Connection con;//数据库连接变量

Statement stmt;//数据库操作表达式

ResultSet rs;//数据结果集

request.setCharacterEncoding(“gb2312”);

String STAFF_NO=request.getParameter(“STAFF_NO”);

String LASTNAME=request.getParameter(“LASTNAME”);

String FIRSTNAME=request.getParameter(“FIRSTNAME”);

String connStr = “jdbc:domino:/set.nsf”;//数据库连接字符串,连接目标数据库

Class.forName(“lotus.jdbc.domino.DominoDriver”);

con = DriverManager.getConnection(connStr,“”,“”);

stmt = con.createStatement();

//String sql = “INSERT INTO TEST1 VALUES('”+STAFF_NO+“', '”+LASTNAME+“', '”+FIRSTNAME+“')”;

String sql = “CREATE TABLE Test2 (STAFF_NO CHAR(5),LASTNAME CHAR(15),FIRSTNAME CHAR(15))”;

rs = stmt.executeQuery(sql);