VerifierStream(Manifest man, JarEntry je, InputStream is, JarVerifier jv) throws IOException {
   this.is = is;
   this.jv = jv;
   this.mev = new ManifestEntryVerifier(man);
   this.jv.beginEntry(je, mev);
   this.numLeft = je.getSize();
   if (this.numLeft == 0) this.jv.update(-1, this.mev);
 }