I have some issue here, I searched it and got that iReport Designer cannot working with JDK 8. but I need to using method on my project that using JDK 8. if I use my method it will give a warning.
Unsupported major.minor version 52.0
is there any solution for it? so I can run my method?
As Alex already said, iReport Designer is deprecated and will not be supported any further.
Since version 5.5 Jaspersoft Studio is the official and supported Client for Jaspersoft.
In Jaspersoft Studio you can choose which version of jasper-reports you want to use: