https://issues.apache.org/bugzilla/show_bug.cgi?id=52385
Bug #: 52385
Summary: [REGRESSION] HPSF corrupts output when starting file
has unsupported variant props
Product: POI
Version: 3.8-dev
Platform: All
OS/Version: All
Status: NEW
Severity: critical
Priority: P2
Component: HPSF
AssignedTo: [email protected]
ReportedBy: [email protected]
Classification: Unclassified
[REGRESSION] HPSF
It looks like we have a regression caused by recent changes in HPSF: an OLE2
file becomes unreadable after write if it contains a variant property of
unsupported type. In my research the problematic variant types were 4126 and
4108. The log warninga are below:
HPSF does not yet support the variant type 4126 (unknown variant type,
000000000000101E).
HPSF does not yet support the variant type 4108 (unknown variant type,
000000000000100C).
I was working on some improvements in HSSF and noticed Excel coudn't open the
output file. At first I thought it was my changes, but it turned out that even
simple read-write results in unreadble output:
HSSFWorkbook wb = new HSSFWorkbook(new FileInputStream(inputFile));
FileOutputStream os = new FileOutputStream(outputFile);
wb.write(os);
os.close();
Try the code above against the following files from our collection of test
files and the output will be coruppted.
12843-1.xls 34775.xls 45365.xls
ContinueRecordProblem.xls OddStyleRecord.xls
13224.xls 37684-2.xls 45365-2.xls ex42570-20305.xls
RangePtg.xls
14460.xls 41139.xls 46137.xls ex44921-21902.xls
testNames.xls
24207.xls 42464-ExpPtg-bad.xls 47034.xls
ex45978-extraLinkTableSheets.xls XRefCalc.xls
27852.xls 42464-ExpPtg-ok.xls 47847.xls ex46548-23133.xls
XRefCalcData.xls
29982.xls 42844.xls 48026.xls
IndexFunctionTestCaseData.xls
30978-deleted.xls 44010-SingleChart.xls 49185.xls IrrNpvTestCaseData.xls
32822.xls 44010-TwoCharts.xls 50939.xls MRExtraLines.xls
Excel 2010 shows a warning when opening such files.
The problem seems to be reelated to OLE properties and HPSF. If I comment the
line 1218 in HSSFWorkbook then all is fine and Excel is happy to open the
output files:
// Write out our HPFS properties, if we have them
writeProperties(fs, excepts);
This is a must for 3.8-final.
Yegor
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