private boolean unpackFile(ZipFile zip, byte[] buf, ZipEntry fileEntry, String name)
      throws IOException, FileNotFoundException {
    if (fileEntry == null) fileEntry = zip.getEntry(name);
    if (fileEntry == null)
      throw new FileNotFoundException("Can't find " + name + " in " + zip.getName());

    File outFile = new File(sGREDir, name);
    if (outFile.lastModified() == fileEntry.getTime() && outFile.length() == fileEntry.getSize())
      return false;

    File dir = outFile.getParentFile();
    if (!dir.exists()) dir.mkdirs();

    InputStream fileStream;
    fileStream = zip.getInputStream(fileEntry);

    OutputStream outStream = new FileOutputStream(outFile);

    while (fileStream.available() > 0) {
      int read = fileStream.read(buf, 0, buf.length);
      outStream.write(buf, 0, read);
    }

    fileStream.close();
    outStream.close();
    outFile.setLastModified(fileEntry.getTime());
    return true;
  }
 public void init() throws IOException {
   URL s = getClass().getClassLoader().getResource(SERVICE_JAR_FILE);
   if (s == null)
     if (underTest) return;
     else throw new Error("No " + SERVICE_JAR_FILE + " resource in jar");
   service.getParentFile().mkdirs();
   IO.copy(s, service);
 }
  private File create(String bsn, Version v) throws Exception {
    String name = bsn + "-" + v;
    Builder b = new Builder();
    b.setBundleSymbolicName(bsn);
    b.setBundleVersion(v);
    b.setProperty("Random", random++ + "");
    b.setProperty("-resourceonly", true + "");
    b.setIncludeResource("foo;literal='foo'");
    Jar jar = b.build();
    assertTrue(b.check());

    File file = IO.getFile(tmp, name + ".jar");
    file.getParentFile().mkdirs();
    jar.updateModified(System.currentTimeMillis(), "Force it to now");
    jar.write(file);
    b.close();
    return file;
  }