mysql连接问题

连接成功,但是会出现很多跟踪,怎么回事
dbc.ConnectionProperties$ConnectionProperty.getPropertyName(..) returning "logSlowQueries"
Wed Jan 10 11:51:13 CST 2007 TRACE:      --> ConnectionProperties.java:97 com.mysql.jdbc.ConnectionProperties$BooleanConnectionProperty.initializeFrom(null)
Wed Jan 10 11:51:13 CST 2007 TRACE:      <--  ConnectionProperties.java:97 com.mysql.jdbc.ConnectionProperties$BooleanConnectionProperty.initializeFrom(..) returning null
Wed Jan 10 11:51:13 CST 2007 TRACE:     <--  ConnectionProperties.java:199 com.mysql.jdbc.ConnectionProperties$ConnectionProperty.initializeFrom(..) returning null
Wed Jan 10 11:51:13 CST 2007 TRACE:     --> ConnectionProperties.java:199 com.mysql.jdbc.ConnectionProperties$ConnectionProperty.initializeFrom({profileSQL=false})
Wed Jan 10 11:51:13 CST 2007 TRACE:      --> ConnectionProperties.java:185 com.mysql.jdbc.ConnectionProperties$ConnectionProperty.getPropertyName()
Wed Jan 10 11:51:13 CST 2007 TRACE:      <--  ConnectionProperties.java:185 com.mysql.jdbc.ConnectionProperties$ConnectionProperty.getPropertyName(..) returning "maintainTimeStats"
Wed Jan 10 11:51:13 CST 2007 TRACE:      --> ConnectionProperties.java:185 com.mysql.jdbc.Connect连接代码如下    try
    {
      Class.forName("org.gjt.mm.mysql.Driver").newInstance();
      Connection con = DriverManager.getConnection("jdbc:mysql://localhost/onixweb?user=root&password=123456&profileSQL=false");
      Statement sql = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
      ResultSet rs = sql.executeQuery("select * from jcm_ucar_maker");
      while(rs.next())
      {
        name = rs.getString(1);
    
        System.out.println("name: "+ name);
      }
      con.close();
    }
    catch (Exception e)
    {
       e.printStackTrace();
    }
  }