Delivering code that you can’t compile.
It’s Java, therefore it’s possible. How, you ask me? Simple. Watch this simple error:
Exception in thread “main” java.lang.Error: Unresolved compilation problem:
The method setVar(String, int) from the type VariableStorage is not visible
Yes, this is precisely what it means. Unresolved compilation problem. This means that the code shouldn’t have compiled in the first place; but heck, people can deliver it anyway.
I don’t know if I should call this silly or not. I am just thinking about that corner case that happens once in a million years (let’s say, when you fix your clock for the daylight savings time). What can I say, tester’s hell.