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.luss...@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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