https://bz.apache.org/bugzilla/show_bug.cgi?id=57851
Bug ID: 57851
Summary: NPE in NPOIFSFileSystem for corrupted MSG file
Product: POI
Version: 3.11-FINAL
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: POIFS
Assignee: [email protected]
Reporter: [email protected]
Created attachment 32682
--> https://bz.apache.org/bugzilla/attachment.cgi?id=32682&action=edit
Problematic file
Constructor of NPOIFSFileSystem throws NPE when given an input stream to a file
created by slightly modifying valid MSG file.
@Test
public void shouldNotThrowNPE() throws IOException {
InputStream input = ClassLoader.getSystemResourceAsStream("corrupted.msg");
new NPOIFSFileSystem(input);
}
Resulting stack trace (removed JUnit frames):
java.lang.NullPointerException
at
org.apache.poi.poifs.property.DirectoryProperty.addChild(DirectoryProperty.java:256)
at
org.apache.poi.poifs.property.PropertyTableBase.populatePropertyTree(PropertyTableBase.java:115)
at
org.apache.poi.poifs.property.PropertyTableBase.populatePropertyTree(PropertyTableBase.java:118)
at
org.apache.poi.poifs.property.PropertyTableBase.<init>(PropertyTableBase.java:63)
at
org.apache.poi.poifs.property.NPropertyTable.<init>(NPropertyTable.java:66)
at
org.apache.poi.poifs.filesystem.NPOIFSFileSystem.readCoreContents(NPOIFSFileSystem.java:416)
at
org.apache.poi.poifs.filesystem.NPOIFSFileSystem.<init>(NPOIFSFileSystem.java:324)
at
pl.edu.agh.seeker.extractor.mail.MsgExtractorTest.shouldNotThrowNPE(MsgExtractorTest.java:24)
The culprit seems to be
org.apache.poi.poifs.property.PropertyFactory.convertToProperties, which adds
null to the list of properties upon encountering unrecognized property type.
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