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Posted to dev@poi.apache.org by bu...@apache.org on 2021/01/22 14:17:49 UTC
[Bug 65099] New: NPE in XWPFStyle.getUsedStyleList(XWPFStyle style,
List usedStyleList)
https://bz.apache.org/bugzilla/show_bug.cgi?id=65099
Bug ID: 65099
Summary: NPE in XWPFStyle.getUsedStyleList(XWPFStyle style,
List<XWPFStyle> usedStyleList)
Product: POI
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: XWPF
Assignee: dev@poi.apache.org
Reporter: yvan.lussaud@obeo.fr
Target Milestone: ---
With POI 4.1.0 the following code trigger a NPE on this document:
https://github.com/ObeoNetwork/M2Doc/blob/master/tests/org.obeonetwork.m2doc.tests/resources/userDoc/bug_387/bug_387-userContent.docx
final XWPFDocument inputDoc = ...;
List<XWPFStyle> usedStyleList = inputDoc.getStyles().getUsedStyleList(style);
The NPE:
java.lang.NullPointerException
at
org.apache.poi.xwpf.usermodel.XWPFStyles.getUsedStyleList(XWPFStyles.java:223)
at
org.apache.poi.xwpf.usermodel.XWPFStyles.getUsedStyleList(XWPFStyles.java:240)
at
org.apache.poi.xwpf.usermodel.XWPFStyles.getUsedStyleList(XWPFStyles.java:213)
...
The code seems to check if an object is different from null then pass an other
object:
if ((nextStyle != null) && (!usedStyleList.contains(nextStyle))) {
usedStyleList.add(linkStyle);
getUsedStyleList(linkStyle, usedStyleList);
}
My guess is linkStyle should be replaced by nextStyle.
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[Bug 65099] NPE in XWPFStyle.getUsedStyleList(XWPFStyle style,
List usedStyleList)
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=65099
--- Comment #1 from Dominik Stadler <do...@gmx.at> ---
This is handled in https://github.com/apache/poi/pull/216 as well.
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[Bug 65099] NPE in XWPFStyle.getUsedStyleList(XWPFStyle style,
List usedStyleList)
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=65099
Dominik Stadler <do...@gmx.at> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |NEEDINFO
--- Comment #2 from Dominik Stadler <do...@gmx.at> ---
The patch looks valid, but can you provide a bit more sample-code to reproduce
this so we can add a unit-test which verifies this in the future?
I tried with the following, but this works with the latest version of Apache
POI:
@Test
public void test65099() throws IOException {
try (XWPFDocument doc =
XWPFTestDataSamples.openSampleDocument("65099.docx")) {
XWPFStyles styles = doc.getStyles();
assertNotNull(styles);
XWPFStyle normal = styles.getStyle("Normal");
assertNotNull(normal);
XWPFStyle style1 = styles.getStyle("EdfTitre3Car");
assertNotNull(style1);
List<XWPFStyle> list = styles.getUsedStyleList(normal);
assertNotNull(list);
assertEquals(1, list.size());
list = styles.getUsedStyleList(style1);
assertNotNull(list);
assertEquals(7, list.size());
}
}
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[Bug 65099] NPE in XWPFStyle.getUsedStyleList(XWPFStyle style,
List usedStyleList)
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=65099
--- Comment #4 from Dominik Stadler <do...@gmx.at> ---
This is fixed via r1886063 now, should be included in the upcoming Apache POI
5.0.1.
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[Bug 65099] NPE in XWPFStyle.getUsedStyleList(XWPFStyle style,
List usedStyleList)
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=65099
--- Comment #3 from Yvan Lussaud <yv...@obeo.fr> ---
Yes I forgot the style initialization:
XWPFStyle style = document.getStyles().getStyle("TableauGrille41");
inputDoc.getStyles().getUsedStyleList(style);
This trigger the NPE with the linked document.
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