Python vs. Java Runtime on Euler 22 - Name Scores

I want to know why Java is accepted over Python when it comes to runtime. On performing the following Euler problem, Python takes up less lines and runs faster (Python ~0.05s, Java ~0.3s on my machine).

Could I optimize this Java code in any way? The problem is here (http://projecteuler.net/problem=22)

Python:

def main():
    names = open("names.txt", "r").read().replace("\"", "").split(",")
    names.sort()
    print sum((i + 1) * sum(ord(c) - ord('A') + 1 for c in n) for i, n in enumerate(names))

if __name__ == "__main__":
    main()

Java:

import java.util.Arrays;
import java.lang.StringBuilder;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class euler22
{
    public static String readFileAsString(String path) throws IOException
    {
        StringBuilder builder = new StringBuilder();
        BufferedReader reader = new BufferedReader(
                new FileReader(path));
        String buffer = null;

        while((buffer = reader.readLine()) != null)
        {
            builder.append(buffer);
        }

        reader.close();

        return builder.toString();
    }

    public static void main(String[] args) throws IOException
    {
        String[] names = fileAsString("names.txt").replace("\"", "").split(",");
        int total = 0;

        Arrays.sort(names);

        for(int i = 0; i < names.length; ++i)
        {
            int sum = 0;

            for(char c : names[i].toCharArray())
            {
                sum += c - 'A' + 1;
            }

            total += (i + 1) * sum;
        }

        System.out.println(total);
    }
}