Can two Lists (each with its own datasource) talk to each other

[AnnMary.Thomas]

I have 2 lists in my Jasper report each having its own datasource.

List 1 : Field A, Field B

List 2 : Field A, Filed B

Now if List1.FieldA value is different from List2.FieldA value they should be displayed in red color.

Is there a way to acheive this