Why Jasper Reports shows empty report in server, but generates correctly in jasper studio

Question

I am using Jasper Studio 6.6.0 and Jasper server 7.1.

I have created a simple report with an image from a specified URL.

It generates correctly in Jasper Studio,

Answer 1

The best way to do not have the empty page when no data source is provided, is to trick jasper to think there is a data source:

1) Define an Data Adapter (a simple .xml file) and put it in reports folder:

Data Adapter fake1

2) Link it into the main report:

prefix "repo:" to the value of the property for the data adapter, if the xml is deployed on jasper server.

The attribute "whenNoDataType" will be ignored.

Other details here.