class A
{
   public A()
   {
      this(0);
   }
   public A(int i)
   {
   }
}

and:

class B
{
   public static void test()
   {
      new A();
   }
}
The call tree will look like this:
B.test()
   -A.<init>(int)
   -A.<init>()
Rather than this:
B.test()
   -A.<init>()
      -A.<init>(int)