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From "Andrew Cornwall (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HARMONY-5970) [pack200][classlib] SegmentHeader.archiveModtime is incorrect
Date Thu, 04 Sep 2008 17:45:44 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-5970?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Cornwall updated HARMONY-5970:
-------------------------------------

    Attachment: hello.jar
                hello.pack.gz

Files hello.pack.gz and hello.jar (test case files with dates set). Note that on my filesystem,
they have the following date stamps:

09/04/2008  10:26 AM               733 hello.jar
09/04/2008  10:26 AM               315 hello.pack.gz


> [pack200][classlib] SegmentHeader.archiveModtime is incorrect
> -------------------------------------------------------------
>
>                 Key: HARMONY-5970
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5970
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>    Affects Versions: 5.0M7
>         Environment: All Pack200 M7
>            Reporter: Andrew Cornwall
>             Fix For: 5.0M7
>
>         Attachments: hello.jar, hello.pack.gz
>
>
> The value for archive_modtime in SegmentHeader appears to be calculated incorrectly.
Because of this, the dates in the JAR file are all 1980-01-01 rather than the correct dates.
> (This isn't a case of the date being thrown out because of pack -E9. Sun's unpack200.exe
preserves the dates.)
> I've attached a testcase, hello.pack.gz. If you unpack it with Sun's unpack200, you'll
see:
> Archive:  sun.jar
> PACK200
>  Length   Method    Size  Ratio   Date   Time   CRC-32    Name
> --------  ------  ------- -----   ----   ----   ------    ----
>        0  Stored        0   0%  09-04-08 10:26  00000000  META-INF/
>       71  Stored       71   0%  09-04-08 10:26  30f2b30e  META-INF/MANIFEST.MF
>      401  Defl:X      276  31%  09-04-08 10:26  1701f5d1  Hello.class
> --------          -------  ---                            -------
>      472              347  27%                            3 files
> while we generate:
> Archive:  harmony.jar
> PACK200
>  Length   Method    Size  Ratio   Date   Time   CRC-32    Name
> --------  ------  ------- -----   ----   ----   ------    ----
>        0  Defl:N        2   0%  01-01-80 00:00  00000000  META-INF/
>       71  Defl:N       71   0%  01-01-80 00:00  30f2b30e  META-INF/MANIFEST.MF
>      401  Defl:N      276  31%  01-01-80 00:00  1701f5d1  Hello.class
> --------          -------  ---                            -------
>      472              349  26%                            3 files
> The value passed into SegmentHeader.setArchiveModtime() is:
> 1220523974
> which corresponds to Wed Jan 14 20:02:03 MST 1970.
> This issue is minor here, but may be a huge defect if decode_scalar is coming up with
the wrong answer due to overflow / truncation issues.

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