Use of -noverify when launching java apps

Question

I have seen many apps that take instrument classes and take -javaagent as a param when loading also put a -noverify to the command line.

Th

Answer 1

Using JRebel without -noverify will give this warning on startup:

JRebel: '-noverify' missing, changing/adding/removing constructors will not be enabled!

So appears that -noverify allows bytecode re-instrumentation to do some things which would otherwise not be possible.