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https://issues.apache.org/jira/browse/XMLBEANS-641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17771462#comment-17771462
]
PJ Fanning commented on XMLBEANS-641:
-------------------------------------
Ideally a test would need to be xmlbeans specific. Maybe if we could track down
which XML file inside the docx file causes the issue.
> Fuzzing XMLBeans triggers an assert() for an input-file via Apache POI
> ----------------------------------------------------------------------
>
> Key: XMLBEANS-641
> URL: https://issues.apache.org/jira/browse/XMLBEANS-641
> Project: XMLBeans
> Issue Type: Bug
> Reporter: Dominik Stadler
> Priority: Major
> Attachments:
> clusterfuzz-testcase-minimized-POIXWPFFuzzer-6733884933668864.docx
>
>
> Fuzzing Apache POI via oss-fuzz shows the following assert() being triggered
> via an input-file.
>
> Would be good to convert to IllegalArgumentException or IllegalStateException
> so that fuzzy testing can continue to flag other places where assert() is
> used incorrectly.
>
> {code:java}
> at org.apache.xmlbeans.impl.store.Saver$TextSaver.emitName(Saver.java:1099)
> at org.apache.xmlbeans.impl.store.Saver$TextSaver.emitElement(Saver.java:894)
> at org.apache.xmlbeans.impl.store.Saver.processElement(Saver.java:461)
> at org.apache.xmlbeans.impl.store.Saver.process(Saver.java:291)
> at org.apache.xmlbeans.impl.store.Saver$TextSaver.write(Saver.java:1696)
> at
> org.apache.xmlbeans.impl.store.Saver$InputStreamSaver.ensure(Saver.java:2348)
> at
> org.apache.xmlbeans.impl.store.Saver$InputStreamSaver.access$200(Saver.java:2234)
> at
> org.apache.xmlbeans.impl.store.Saver$InputStreamSaver$OutputStreamImpl.read(Saver.java:2393)
> at
> org.apache.xmlbeans.impl.store.Saver$InputStreamSaver.lambda$read$0(Saver.java:2332)
> at org.apache.xmlbeans.impl.store.Saver.syncWrap(Saver.java:2184)
> at org.apache.xmlbeans.impl.store.Saver.access$000(Saver.java:33)
> at
> org.apache.xmlbeans.impl.store.Saver$InputStreamSaver.read(Saver.java:2332)
> at java.base/java.io.InputStream.read(InputStream.java:218)
> at org.apache.xmlbeans.impl.store.Cursor._save(Cursor.java:570)
> at org.apache.xmlbeans.impl.store.Cursor.lambda$save$17(Cursor.java:2006)
> at org.apache.xmlbeans.impl.store.Cursor.syncWrapHelper(Cursor.java:2551)
> at org.apache.xmlbeans.impl.store.Cursor.syncWrapIOEx(Cursor.java:2504)
> at org.apache.xmlbeans.impl.store.Cursor.save(Cursor.java:2006)
> at org.apache.xmlbeans.impl.values.XmlObjectBase.save(XmlObjectBase.java:190)
> at org.apache.poi.xwpf.usermodel.XWPFTheme.commit(XWPFTheme.java:178)
> at
> org.apache.poi.ooxml.POIXMLDocumentPart.onSave(POIXMLDocumentPart.java:467)
> at
> org.apache.poi.ooxml.POIXMLDocumentPart.onSave(POIXMLDocumentPart.java:472)
> at org.apache.poi.ooxml.POIXMLDocument.write(POIXMLDocument.java:221){code}
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