URL[] urla = new URL[urls.length];
for (int i = 0; i < urls.length; i++)
urla[i] = new URL(urls[i].trim());
final VmSystemClassLoader cl = new VmSystemClassLoader(urla, arch);
final Vm vm = new VmImpl("?", arch, cl.getSharedStatics(), false, cl, null);
vm.toString(); // Just to avoid compiler warnings
VmType.initializeForBootImage(cl);
long lastModified = 0;
FileWriter fw = new FileWriter(destFile);
PrintWriter out = new PrintWriter(fw);