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https://issues.apache.org/jira/browse/COMPRESS-124?focusedWorklogId=355121&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-355121
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ASF GitHub Bot logged work on COMPRESS-124:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 06/Dec/19 11:31
Start Date: 06/Dec/19 11:31
Worklog Time Spent: 10m
Work Description: tcurdt commented on pull request #87: COMPRESS-124 :
Add support for extracting sparse entries from tar archives
URL: https://github.com/apache/commons-compress/pull/87#discussion_r354789566
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File path:
src/main/java/org/apache/commons/compress/archivers/tar/TarArchiveInputStream.java
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@@ -26,14 +26,14 @@
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
-import java.util.HashMap;
-import java.util.Map;
+import java.util.*;
Review comment:
unless rules have changed - please avoid * imports
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Issue Time Tracking
-------------------
Worklog Id: (was: 355121)
Time Spent: 3h 50m (was: 3h 40m)
> Unable to extract a sparse entries from tar archives
> ----------------------------------------------------
>
> Key: COMPRESS-124
> URL: https://issues.apache.org/jira/browse/COMPRESS-124
> Project: Commons Compress
> Issue Type: New Feature
> Components: Archivers
> Affects Versions: 1.1, 1.2
> Environment: Platform independent. However, I'm currently using
> Window 7 Enterprise.
> Reporter: Patrick Dreyer
> Priority: Major
> Labels: tar
> Fix For: 1.20
>
> Attachments: gnuSparseFile.patch
>
> Time Spent: 3h 50m
> Remaining Estimate: 0h
>
> Good news first: I already have the patch ready for that.
> I got several TAR files which I could not extract with any of the existing
> Java implementations, but I could extract all those TAR files successfully
> with GNU tar.
> It turned out that all the failing TAR files contained so called sparse
> files. Investigating the source code of all existing Java TAR implementations
> showed me that none of them even recognizes the existence of GNU sparse
> entries.
> Actually, I don't need to process one of the contained sparse files and I'm
> happy if I'm at least able to correctly untar all the non-sparsed files.
> Thus, it would be sufficient recognizing sparse files without the need to
> correctly un-sparse them while extracting. As long as all non-sparsed files
> get extracted correctly, I'm fine.
> The TAR files in question have all been VMware Diagnostic File bundles.
> See
> http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=653
> to know how to get them.
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