I think it is a good programming practice plus:
It saves resources.
No, it does not.
``String literals-or, more generally, strings that are the values of constant expressions (�15.28)-are "interned" so as to share unique instances, using the method String.intern.''
(http://java.sun.com/docs/books/jls/second_edition/html/ lexical.doc.html#101083)
This means, unless I'm seriously mistaken, that you can always use "" instead of StringUtils.EMPTY without using a single bit of memory more. And there's no GC involved.
It's just obfuscation without any efficiecy gain.
Did you really think it is better to make a:
Boolean b = new Boolean(true) instead of
Boolean b = Boolean.TRUE
Never said that.
Both expresion got the same result, but the first innecesary create another Object on the memory. That later the garbage collector need to free. This is my POV. The same happen with
StringUtils.EMPTY vs. ""
I'm afraid you are wrong about this, dear friend.
I really believe in the code reutilization. Jakarta commons lang is part
of the core of Cocoon. Why we need to wrote the same code over and over?
There is NO code to write or reuse in this case. A simple "" is enough.
Ugo
