Execution exception

NullPointerException occurred : Try to read name on null object models.Column.Column (controllers.DevelopmentInfo.infoList, line 35)

In /app/controllers/DevelopmentInfo.java (around line 35)

31:

 Default.defaultList(id);

32:

 } else {

33:

 PlayPage playPage = new PlayPage();

34:

 Column col = PJPA.selectObject("select * from columns where id = '" + StringEscapeUtils.escapeSql(id) +"'", Column.class);

35:

 if (col.name.equals("人物风采")) {

36:

 playPage.setPer_page(80);

37:

 } else {

38:

 playPage.setPer_page(20);

39:

40:

 playPage.setNum_links(6);

41:

 playPage.setCur_page(page);

This exception has been logged with id 7j7097mjd