iReport not launching on OS X Yosemite

The solution for me was to change the content of the file ireport.conf located in the directory /Applications/Jaspersoft iReport Designer.app/Contents/Resources/ireport/etc under the line with this text

# default location of JDK/JRE, can be overridden by using --jdkhome switch

i uncommented the next line and changed it for this jdkhome="/Library/Java/JavaVirtualMachines/jdk1.7.0_55.jdk/Contents/Home" and now is working.

It looks like the fix is to install "Java for OS X 2014-001" from Apple. I did this and iReport now launches for me.

Download here: http://support.apple.com/kb/DL1572