public Archive merge(Archive archive) {
Map<String, File> entriesToMerge = archive.getEntries();
for (Entry<String, File> entry : entriesToMerge.entrySet()) {
File file = entry.getValue();
if (file != null && !file.isDirectory()) {
try {
addEntry(entry.getKey(), FileUtils.readFile(file));
} catch (IOException e) {
throw new IllegalStateException(
"Unexpected error reading Archive file '" + file.getAbsolutePath() + "'.", e);
}
} else {
addEntry(entry.getKey(), (byte[]) null);
}
}
return this;
}
