checksum and JARs

[moongate]

Hello everybody,

whenever I run JAR on the classes of my project, it generates a JAR
file with a different checksum (I am working on Linux, but I would
assume this happens everywhere).

What do you use as a substitute for checksum? In other words, how can
you quickly and reliably compare 2 JARs in order to determine if their
code content is the same (i.e., generated from the compilation of
identical sources?)

Thanks in advance
MC