I am looking this particular problem for couple of days.May be someone had this issue before and resolved it already - pls help.

Using java.lang.zip.* I have tried to zip/unzip normal zip/jar files with out any issue. No big deal .. ll good.

But, couldnt read or archive a zipfile with split / multipart file. I have used winzip to create a zip file with 5m max file size. so the file created are like a.zip, a.z01, a,z02 ....
I have tried many option and many libraries to read and extract the contents programically.

Just wondering anyone had similar problem and found a solution? I am more than happy to use any libraries as long as it could handle multipart zip and unzip.

Any help would be great.

Thanks,
arun

update - i have now used truezip and please see the example code used below. But couldn't process the one created. CheckedInputStream used as a trial but doesnt really matter.

de.schlichtherle.io.File file = new de.schlichtherle.io.File(
        "D:/test/a.zip");

file.archiveCopyAllTo(new de.schlichtherle.io.File(
        "d:/test/out-tzip.zip", ArchiveDetector.ALL));

byte[] buf = new byte[2048];
ZipEntry zipentry;

final File file1 = new File("d:/test/out-tzip.zip");

FileInputStream fis = new FileInputStream(file1);

InputStream checksum = new CheckedInputStream(fis, new CRC32());
ZipInputStream zipinputstream = new ZipInputStream(checksum);

zipentry = zipinputstream.getNextEntry();
System.out.println(zipentry);

net.lingala.zip4j.examples.zip.CreateSplitZipFile appears to be your solution