lucene.vector -e file NPE happens
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Key: MAHOUT-544
URL: https://issues.apache.org/jira/browse/MAHOUT-544
Project: Mahout
Issue Type: Bug
Components: Utils
Affects Versions: 0.5
Environment: ubuntu 10.10
Reporter: beneo
Fix For: 0.5
in Mahout/bin
./mahout lucene.vector -d /home/beneo/temp/index/ -i id -o
/home/beneo/temp/vector/vector -f content -t /home/beneo/temp/vector/dict -e
file -n 2
NPE
the class LuceneIterable#next, the result = mapper.getVecter() may return null;
however, in the JWriterVectorWriter#write(Iterable<Vector>, long), in the loop
for(Vector vector : iterable), the vector may be null.
so, NPE throwed.
the solutions is
if(vector!=null){
writer.writer ......
}
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