ClassCastException thrown in the map(String,int,TermVectorOffsetInfo[],int[])
method in org.apache.lucene.index.SortedTermVectorMapper
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Key: LUCENE-3939
URL: https://issues.apache.org/jira/browse/LUCENE-3939
Project: Lucene - Java
Issue Type: Bug
Components: core/index
Affects Versions: 3.5, 3.4, 3.1, 3.0.2
Reporter: SHIN HWEI TAN
The method "map" in the "SortedTermVectorMapper" class does not check the
parameter "term" for the valid values. It throws ClassCastException when called
with a invalid string for the parameter "term" (i.e., "var3.map("*", (-1),
null, null)"). The exception thrown is due to an explict cast(i.e., casting the
return value of termToTVE.get(term) to type "TermVectorEntry").
Suggested Fixes: Replace the beginning of the method body for the class
"SortedTermVectorMapper" by changing it like this:
public void map(String term, int frequency, TermVectorOffsetInfo[] offsets,
int[] positions) {
if(termToTVE.get(term) instanceof TermVectorEntry){
TermVectorEntry entry = (TermVectorEntry) termToTVE.get(term);
...
}
}
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