Getting a JRException: Error loading object from InputStream when filling report on loop

[blamblam]

Hi I'm trying to create a report for multiple users so I have a loop that goes through the List of users and creates a report based on their details. Inside the loop I have a JasperFillManager like this: 

def jrprint = JasperFillManager.fillReport(resource.get(), parameters, dataSource)[/code]

where resource is the .jasper file, parameter contains the details of the users and dataSource is aa JRBeanCollectionDataSource. It creates the first report just fine but flags an error on the second loop:

net.sf.jasperreports.engine.JRException: Error loading object from InputStream.[/code]

I hope you can help me, thanks!

[blamblam]

I reused the inputstream in the loop, the pointer already moved to eof. Solution is to create a new one in every loop.