Redhat7.2+postgresql7.2+jdk1.3.1

다음과같은에러발생

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java.lang.NoSuchMethodError: java/sql/Statement.getResultSetConcurrency()I

at org.postgresql.jdbc2.Connection.getResultSet(source file unknown:line

unknown, pc 0x82ee836)

at org.postgresql.core.QueryExecutor.execute(source file unknown:line un

known, pc 0x82e69b9)

at org.postgresql.Connection.ExecSQL(source file unknown:line unknown, p

c 0x82ce604)

at org.postgresql.jdbc2.Statement.execute(source file unknown:line unkno

wn, pc 0x83258aa)

at org.postgresql.jdbc2.Statement.executeUpdate(source file unknown:line

unknown, pc 0x8325622)

at BoardTest.main(BoardTest.java:36)

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source

-------------------------------------------------------------------

try

{

Class.forName("org.postgresql.Driver");

java.sql.Connection conn=java.sql.DriverManager.getConnection

("jdbc:postgresql://127.0.0.1/testdb","postgres","");

java.sql.Statement stmt=conn.createStatement();

stmt.executeUpdate("insert into boardidx,title,name,pswd,email,ref) "+

"values(nextval('board_idx'),'title','name','pswd','email',currval('board_idx'));");

stmt.close();

conn.close();

}

catch (Exception e)

{

System.out.println("Error"+e.getMessage());

}

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이상한에러가발생합니다. JDBC Driver를 잘못만들었나..

그리고 postgreSQL 깔때 이전버전 깔려있는건 모두 지운담 설치해야합니까? 전 그냥 깔았거덩요.. 그것때문인지 아뭏든 도와주십시요...