Just hit this so I thought I would write up a quick entry. I'm trying to get Hibernate and Apache CXF to work together. I have a Gradle build. I ran my test suite and I am seeing issues with CGLib classes. After a little bit of research, it seems there's an issue between the ASM library that Hibernate's CGLib uses and the one that Apache CXF uses. Solution is to exclude cglib-2.1_3.jar and use cglib-nodep-2.1_3.jar instead. To do this in Gradle:
all*.exclude group: 'cglib', module: 'cglib'
compile group: 'cglib', name: 'cglib-nodep', version: '2.1_3'
Adding these lines to the build.gradle file allow me to remove the cglib-2.1_3.jar dependency and instead specify the nodep version instead. Pretty slick.