Motivation:
NullChecks resulting in a NullPointerException or IllegalArgumentException, numeric ranges (>0, >=0) checks, not empty strings/arrays checks must never be anonymous but with the parameter or variable name which is checked. They must be specific and should not be done with an "OR-Logic" (if a == null || b == null) throw new NullPointerEx.
Modifications:
* Add some checks to ObjectUtil not present today but utilized in the code.
* Add unit test for ObjectUtil
* Update commmons internal usage with ObjectUtil
Result:
All checks needed are present, subsequent changes of usage of ObjectUtil are possible.
Fixes for https://github.com/netty/netty/issues/11170
0a2a24f39d