Looking for an alternative compression java library to Apache Commons Compress (https://commons.apache.org/proper/commons-compress/). Commons Compress throws an error when trying to read a zip entry that was compressed using "ENHANCED_DEFLATED" which is deflate64. Here is sample excerpt that throws the exception.
public void doRecurseZip(File inputFile)
throws IOException{
ZipFile srcZip = null;
srcZip = new ZipFile(inputFile);
final Enumeration<ZipArchiveEntry> entries = srcZip.getEntries();
while (entries.hasMoreElements()) {
final ZipArchiveEntry srcEntry = entries.nextElement();
String entryFilename = srcEntry.getName();
String entryMimetype = "application/octet-stream";
boolean canRead = srcZip.canReadEntryData(srcEntry);
InputStream zipStream = srcZip.getInputStream(srcEntry);
zipStream.close();
}
srcZip.close();
}
Here is the relevant part of the stack trace:
org.apache.commons.compress.archivers.zip.UnsupportedZipFeatureException: unsupported feature method 'ENHANCED_DEFLATED' used in entry test.docx at org.apache.commons.compress.archivers.zip.ZipUtil.checkRequestedFeatures(ZipUtil.java:357) at org.apache.commons.compress.archivers.zip.ZipFile.getInputStream(ZipFile.java:404) at ZippingAround.doRecurseZip(ZippingAround.java:23)
Does anyone know of another zip library that could replace Commons Compress, or possibly work in conjunction with it for the deflate64 compression method?
In February 2018, Apache released Compress v1.16 which includes support for ENHANCED_DEFLATED, ie. Deflate64. I needed this support and found that it seems to work.