DoubleMetaphone Filter Produces NullpointerException on zero-length token
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Key: SOLR-1005
URL: https://issues.apache.org/jira/browse/SOLR-1005
Project: Solr
Issue Type: Bug
Components: Analysis
Affects Versions: 1.4
Environment: jdk 1.6.10, tomcat 6.x
Reporter: Michael Henson
If any token given to the DoubleMetaphoneFilter is empty (Token exists, 0
length), then the encoder will return null instead of a metaphone encoded
string. The current code assumes that there will always be a valid object
returned.
Proposed solution: Make sure 0-length tokens are skipped at the top branch
where the code checks whether or not we have a Token object at all.
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