MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.jar.JarOutputStream;
import java.util.jar.Pack200;
import java.util.zip.GZIPInputStream;

public class MainClass {

    public static void main(String[] args) throws Exception {

        String inName = args[0];
        String outName;
        if (inName.endsWith(".pack.gz")) {
            outName = inName.substring(0, inName.length() - 8);
        } else if (inName.endsWith(".pack")) {
            outName = inName.substring(0, inName.length() - 5);
        } else {
            outName = inName + ".unpacked";
        }

        JarOutputStream out = null;
        InputStream in = null;

        Pack200.Unpacker unpacker = Pack200.newUnpacker();
        out = new JarOutputStream(new FileOutputStream(outName));
        in = new FileInputStream(inName);
        if (inName.endsWith(".gz"))
            in = new GZIPInputStream(in);
        unpacker.unpack(in, out);
        out.close();
    }
}