Which way is better for converting number to string?

Sometimes there is need to change an integer to text.
I often use the following way:

"" + myNumber

But there is alternative way:

Integer.toString(myNumber)

Which one is better (performance, readability, safety)?
Or are those equal?

I would recommend

String.valueOf(myNumber)

This allows you to to change myNumber to another primitive type - or a Number - later.

"" + myNumber

should be avoided since :

• it produces clutter bytecode (instanciating a new StringBuffer)

• it does not convey what you wanted to do with myNumber

StackExchange Code Review Q#13781, answer score: 17