Variable java.util.List containing custom java classes

[peter.marlow1787]

Is it possible to define a variable as a list of custom java classes?

For example say I have a java class that returns List(mycustomclass). How can a reference this correctly in iReportDesigner? At present I can create a variable called for example SummaryTablePopulator, with a variable expression that returns an ArrayList(mycustomclass). This variable has java.util.List defined as its Variable Class, iReports is fine with this.

However I don't seem to be able to iterate over this list and access methods on each mycustomclass object. For example in the Column Header section of the report I was hoping to populate a table by doing the following:

$V{SummaryTablePopulator}.getSectionNumber()

Where getSectionNumber is a method on the mycustomclass object. The error I get is: The method getSectionNumber() is undefined for the type List

I'm using iReport Designer 4.0.1.