[jira] [Work logged] (COMPRESS-477) Support for splitted zip files

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/COMPRESS-477?focusedWorklogId=337711&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-337711 ]

ASF GitHub Bot logged work on COMPRESS-477:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 02/Nov/19 15:41
            Start Date: 02/Nov/19 15:41
    Worklog Time Spent: 10m 
      Work Description: bodewig commented on issue #84: COMPRESS-477 Add support for extracting splitted zip files
URL: https://github.com/apache/commons-compress/pull/84#issuecomment-549055156
 
 
   I agree it would be better to separate it into a new PR.
   
   I'm not sure if/how the creation code would overlap with the reading code so guess it wouldn't cause any merge conflicts if you started the new one in parallel but will leave that up to you.
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 337711)
    Time Spent: 2h 10m  (was: 2h)

> Support for splitted zip files
> ------------------------------
>
>                 Key: COMPRESS-477
>                 URL: https://issues.apache.org/jira/browse/COMPRESS-477
>             Project: Commons Compress
>          Issue Type: New Feature
>          Components: Archivers
>    Affects Versions: 1.18
>            Reporter: Luís Filipe Nassif
>            Priority: Major
>              Labels: zip
>          Time Spent: 2h 10m
>  Remaining Estimate: 0h
>
> It would be very useful to support splitted zip files. I've read [https://pkware.cachefly.net/webdocs/casestudies/APPNOTE.TXT] and understood that simply concatenating the segments and removing the split signature 0x08074b50 from first segment would be sufficient, but it is not that simple because compress fails with exception below:
> {code}
> Caused by: java.util.zip.ZipException: archive's ZIP64 end of central directory locator is corrupt.
>  at org.apache.commons.compress.archivers.zip.ZipFile.positionAtCentralDirectory64(ZipFile.java:924) ~[commons-compress-1.18.jar:1.18]
>  at org.apache.commons.compress.archivers.zip.ZipFile.positionAtCentralDirectory(ZipFile.java:901) ~[commons-compress-1.18.jar:1.18]
>  at org.apache.commons.compress.archivers.zip.ZipFile.populateFromCentralDirectory(ZipFile.java:621) ~[commons-compress-1.18.jar:1.18]
>  at org.apache.commons.compress.archivers.zip.ZipFile.<init>(ZipFile.java:295) ~[commons-compress-1.18.jar:1.18]
>  at org.apache.commons.compress.archivers.zip.ZipFile.<init>(ZipFile.java:280) ~[commons-compress-1.18.jar:1.18]
>  at org.apache.commons.compress.archivers.zip.ZipFile.<init>(ZipFile.java:236) ~[commons-compress-1.18.jar:1.18]
> {code}



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