Understanding how to resolve “Inconsistent stackmap frames” exception

Question

I get an exception on startup of the web application as guice is trying to construct the class mentioned.

java.lang.VerifyError: Inconsistent stackmap frames         


        

Answer 1

To find the version of a classfile, just look at the 8th byte of the classfile. It will be 51 for Java 7 classes. A framework like ASM will do this for you.

As far as the error goes, it means your classfile is malformed. How did you create these classes? Did you do any bytecode manipulation? If so, you probably have a bug in your code.