Package asm2 appears to be using Java generics, but generates class files in format older than 49.0, which corresponds to J2SE 5.0, in which generics were introduced. Please update this package to generate classes in format 49.0 or above. This corresponds to -target 1.5 option of javac (or ecj). For more information, see bug #842394
asm2-2.2.3-10.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/asm2-2.2.3-10.fc18
Package asm2-2.2.3-10.fc18: * should fix your issue, * was pushed to the Fedora 18 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing asm2-2.2.3-10.fc18' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-12395/asm2-2.2.3-10.fc18 then log in and leave karma (feedback).
asm2-2.2.3-10.fc18 has been pushed to the Fedora 18 stable repository. If problems still persist, please make note of it in this bug report.