[COMPRESS-715] ZipArchiveInputStream fails with "Unexpected record signature: 0x0"

[garydgregory]

Jira: https://issues.apache.org/jira/browse/COMPRESS-715

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[ppkarwasz]

I think we should just skip the remainder of the archive here:

if (!sig.equals(ZipLong.LFH_SIG)) {
    hitCentralDirectory = true;
    skipRemainderOfArchive();
    return null;
}

I couldn't find any documentation that describes the process of padding a ZIP file. Therefore, we must assume that the “padding” is just arbitrary data.