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Posted to dev@poi.apache.org by bu...@apache.org on 2006/06/13 15:22:16 UTC

DO NOT REPLY [Bug 39800] New: - EscherOptRecord isn't serialising Properties Correctly

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           Summary: EscherOptRecord isn't serialising Properties Correctly
           Product: POI
           Version: 3.0-dev
          Platform: Other
        OS/Version: other
            Status: NEW
          Severity: major
          Priority: P2
         Component: HDF
        AssignedTo: poi-dev@jakarta.apache.org
        ReportedBy: nick@torchbox.com


I've discovered that the serialisation of properties from EscherOptRecord isn't
behaving on some EscherOptRecords in PowerPoint files.

The result is that they are serialised to a different (and I suspect incorrect)
set of bytes (compared to the bytes used to build the record).

I've added a (disabled) test to the end of TestEscherOptRecord which shows up
this bug - the serialised form will differ at byte 28.


(I'm going to have to leave a few HSLF tests disabled for now, as they're being
incorrectly tripped by byte-stream changes in EscherOptRecords)

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DO NOT REPLY [Bug 39800] - EscherOptRecord isn't serialising Properties Correctly

Posted by bu...@apache.org.
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------- Additional Comments From nick@torchbox.com  2006-06-13 15:39 -------
>From some more debugging, it looks like my problem is an EscherArrayProperty,
but not an empty one. It's a problem in the simple part, more debugging is
required though.

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DO NOT REPLY [Bug 39800] - EscherOptRecord isn't serialising Properties Correctly

Posted by bu...@apache.org.
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nick@torchbox.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED




------- Additional Comments From nick@torchbox.com  2006-06-13 17:01 -------
Ah ha! After much poking with a debugger, I finally properly understand Glen's
cryptic comment in setArrayData

I've added a new flag, to record when the simple part's size doesn't include the
header length, so we can write it out the same.

I'm not sure if this'll help the zero size or not though, I'll have to find one
to be sure.

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DO NOT REPLY [Bug 39800] - EscherOptRecord isn't serialising Properties Correctly

Posted by bu...@apache.org.
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------- Additional Comments From yegor@dinom.ru  2006-06-13 13:30 -------
I also discovered this bug some time ago but put it aside for a while until my
hands are free. 

The problem is in org.apache.poi.ddf.EscherArrayProperty.

EscherArrayProperty.checkComplexData overrides the record data if the size of
the array is 0. 

Regards, Yegor

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