Migration issue 1.2.8 -> 3.1.0

[skalle]

Hi.

I`m working on a migration project. The case is to upgrade a set of reports made in ireport 1.2.8 to 3.1.0 using ireport 3.1.0.

But when I try to open the jrxml files created using ireport 1.2.8 in ireport 3.1.0 I get the following error:

java.lang.OutOfMemoryError: Java heap space (the reports works fine within ireport 1.2.8)

What`s wrong?

Is my migration approach wrong? In such case what approach is recommended?

 

Thanks in advance.

 

kh