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NullPointerException in MXParser #34

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rohanpadhye opened this issue Mar 10, 2018 · 1 comment
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@rohanpadhye
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@rohanpadhye rohanpadhye commented Mar 10, 2018

Found this bug when testing Maven:

echo -n "<Y" > npe.xml  # File contains only '<Y' without newlines
mvn -f npe.xml

When using Maven 3.5.2 / plexus-utils 3.1.0, this throws an internal error:

Caused by: java.lang.NullPointerException
	at org.codehaus.plexus.util.xml.pull.MXParser.fillBuf(MXParser.java:3054)
	at org.codehaus.plexus.util.xml.pull.MXParser.more(MXParser.java:3080)
	at org.codehaus.plexus.util.xml.pull.MXParser.parseStartTag(MXParser.java:1776)
	at org.codehaus.plexus.util.xml.pull.MXParser.parseProlog(MXParser.java:1517)
	at org.codehaus.plexus.util.xml.pull.MXParser.nextImpl(MXParser.java:1436)
	at org.codehaus.plexus.util.xml.pull.MXParser.next(MXParser.java:1131)
	at org.apache.maven.model.io.xpp3.MavenXpp3ReaderEx.read(MavenXpp3ReaderEx.java:4399)
	at org.apache.maven.model.io.xpp3.MavenXpp3ReaderEx.read(MavenXpp3ReaderEx.java:598)

Test case was generated automatically by JQF

@michael-o

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@michael-o michael-o commented Mar 11, 2018

Very interesting case, thx.

belingueres added a commit to belingueres/plexus-utils that referenced this issue Dec 5, 2018
Modified MXParser to throw an EOFException with a more informative
message than the NPE. Added some tests.
hboutemy added a commit that referenced this issue Mar 10, 2019
Modified MXParser to throw an EOFException with a more informative
message than the NPE. Added some tests.
@hboutemy hboutemy added this to the 3.2.0 milestone Mar 10, 2019
@hboutemy hboutemy self-assigned this Mar 10, 2019
@hboutemy hboutemy closed this Mar 10, 2019
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