I like to see the coalesce-function from SQL implemented in ObjectUtils. Something like this:
<T> T ObjectUtils.coalesce(T... t)
The first object, which is not null will be returned. This would replace all the defaultValue/defaultString/... methods, with al flexibler and shorter method. It will also reuse an existing name.
I think it's simple. Perhaps there should be overloading methods with fixed parameter sizes. Following the jdk this seems to a little faster:
<T> T ObjectUtils.coalesce(T t1, T t2)
<T> T ObjectUtils.coalesce(T t1, T t2, T t3)
I would provide it, including tests, if you like.