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From "tinghui wang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (COMPRESS-129) "java.io.EOFException: Truncated ZIP entry: <some entry>"- while extracting a zip file that contains a entry which lager than 2 GB (Integer#MAX_VALUE)
Date Thu, 12 May 2011 13:15:47 GMT
"java.io.EOFException: Truncated ZIP entry: <some entry>"- while extracting a zip file
that contains a entry which lager than 2 GB (Integer#MAX_VALUE)
------------------------------------------------------------------------------------------------------------------------------------------------------

                 Key: COMPRESS-129
                 URL: https://issues.apache.org/jira/browse/COMPRESS-129
             Project: Commons Compress
          Issue Type: Bug
          Components: Archivers
    Affects Versions: 1.1
         Environment: Ubuntu 10; java 6 of sun
            Reporter: tinghui wang


Issue:
"java.io.EOFException: Truncated ZIP entry: <some entry>" will be threw while extracting
a zip file that contains a entry with size larger than Integer#MAX_VALUE bytes (about 2 GB).
After the big entry has been read, then try to get next entry by calling ZipArchiveInputStream#getNextZipEntry(),
and it throws that EOFException.

Cause:
before getting next zip entry, ZipArchiveInputStream tries to close the current entry and
in the close- method it use the field "bytesReadFromStream" to ensure all entry bytes are
read, however the field "bytesReadFromStream" is a integer, that means it is already overflowed
and it leads to a false ensure result.

Solution suggestion:
instead integer using long for "bytesReadFromStream" and possibly for "readBytesOfEntry" too.

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