public SevenZipFile(File f) {
file = f;
setLastModified(file.lastModified());
try {
RandomAccessFile rf = new RandomAccessFile(f, "r");
arc = SevenZip.openInArchive(null, (IInStream) new RandomAccessFileInStream(rf));
ISimpleInArchive simpleInArchive = arc.getSimpleInterface();
for (ISimpleInArchiveItem item : simpleInArchive.getArchiveItems()) {
LOGGER.debug("found " + item.getPath() + " in arc " + file.getAbsolutePath());