Jasper reports introduces a blank page just before a sub report when the band element split type is set to prevent. The issue has been notices since I started using Jasper Reports 4.x. Tried different settings, and different options. Have been updating to the latest version, but without luck. Since blank page in the middle of the report was not acceptable, had been researching for a solution. Finally I stumbled across the link:
http://community.jaspersoft.com/jasperreports-library/issues/5010
Finally after implementing the post
http://community.jaspersoft.com/jasperreports-library/issues/5010
Finally after implementing the post
When it will be fixed? 5 years open - JasperSoft ignore us?