Java Language Support for Tail Recursion

Everyone wants tail recursion. I've heard that some JVMs automatically detect tail recursion even. How about a simple syntax change to do it at a language level?

    public int factorial(int number) {
        if (number == 0) {
            return 1;
        } else {
            goto factorial(number, 1);
        }
    }

    private int factorial(int current, int sum) {
        if (current == 1) {
            return sum;
        } else {
            goto factorial(current - 1, sum * current);
        }
    }

Long live goto! In this example, goto means "replace the current stack frame with a call to this method", where the given method can be any method whose return value is compatible with, or equivalent to, the calling method's return value.