- The patch introduces new blank lines; that should be done separately.
- int i = foo.compareTo(baz); return i <= 0; this is an anti-pattern. Remove the use of the local variable.
Also, doing if (foo instanceof Bar), then casting with (Bar), is slower, than just attempting the cast, and catching an exception. If the fast-path items are done first, then no throw ever happens, and you don't waste cycles on the instanceOf operator, and the jump that happens.
I haven't attempted to apply the patch, I was just reading it, but a smell test seems to say -1.
Also, I have done some unit tests against ObjectType in the past; I don't know how current they still are. The change to an instanceOf condiitional needs to pass those tests, and, should also be done with cobertura, and the code coverage should stay the same before and after. But that all hinges on the currentness of the unit testing.