Question about Int boxing/unboxing

Hi,
I was looking at Scala's way to convert scala.Int to java.lang.Integer.
I noticed that Scala calls different methods to convert an Int into an Integer
(see attached code).

Predef.int2Integer always creates a new java.lang.Integer . Couldn't it just
use BoxesRunTime.boxToInteger(Int) as well? boxToInteger caches the values
between -128 - 1024 .

Kind regards,
Joachim

For code like

def printInt(i:Int) = println(i)
def printInteger(i:java.lang.Integer) = println(i)

def main(args: Array[String]) : Unit = {
printInt(10)
printInteger(10)
}

this is the Java code (according to Jad):

public void printInteger(Integer i)
{
Predef$.MODULE$.println(i);
}

public void printInt(int i)
{
Predef$.MODULE$.println(BoxesRunTime.boxToInteger(i));
}

public void main(String args[])
{
printInt(10);
printInteger(Predef$.MODULE$.int2Integer(10));
}