细节部分在字段之间留下空格。我怎样才能消除这种情况？

I am Using latest version of Jasper Reports .I used two frames in detail section of Jasper Reports.One frame is containing all the needed fields in it and is set at top = 0 , second frame is exactly below the first one and contains only one filed.when the text in the text fields of the first frame is normal (fits within the width and do not stretch) the result is normal , means second frame is exactly printed below the first one . but if one of the text field is stretched if content over flows then it leaves some space between the two frames.I am Using latest version of Jasper Reports .I