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https://issues.apache.org/jira/browse/PDFBOX-4579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16873449#comment-16873449
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ASF subversion and git services commented on PDFBOX-4579:
---------------------------------------------------------
Commit 1862152 from Tilman Hausherr in branch 'pdfbox/branches/2.0'
[ https://svn.apache.org/r1862152 ]
PDFBOX-4579: avoid IndexOutOfBoundsException, as suggested by Joakim Nilsson
> IndexOutOfBoundsException when setting DefaultFontProvider in FontMapper
> ------------------------------------------------------------------------
>
> Key: PDFBOX-4579
> URL: https://issues.apache.org/jira/browse/PDFBOX-4579
> Project: PDFBox
> Issue Type: Bug
> Components: FontBox, PDModel, Text extraction
> Affects Versions: 2.0.15
> Reporter: Joakim Nilsson
> Priority: Major
> Labels: easyfix
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> When parsing certain pdf's, I'm encountering an IndexOutOfBoundsException in
> WindowsFontDirFinder.java on line 106:
> {code:java}
> psFontsDir = new File(windir.substring(0, 2) + File.separator + "PSFONTS");
> {code}
> WindowsFontDirFinder is used by the statement on line 128 in
> FontMapperImpl.java in my case:
> {code:java}
> private static final FontProvider INSTANCE = new
> FileSystemFontProvider(fontCache);
> {code}
> The cause of the error is that the value of windir is "" (empty string), at
> least during debugging in Windows. However, I should mention that parsing of
> the same document also fails on ubuntu. While I don't know the exact
> mechanism of the failure on ubuntu, I assume it is related.
> The code checks whether windir is null before doing the substring operation,
> but not whether the length is in fact >2. I'm not sure why windir ends up
> being "" here, as the windir env var is C:\WINDOWS.
>
> A working fix for me was to change the windir null check on line 94 to:
> {code:java}
> if (windir != null && !windir.equals(""))
> {code}
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