When we move to java 1.5 in 3.0 we should replace all Interger, Long, etc 
construction with .valueOf
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                 Key: LUCENE-1833
                 URL: https://issues.apache.org/jira/browse/LUCENE-1833
             Project: Lucene - Java
          Issue Type: Improvement
            Reporter: Mark Miller
            Priority: Trivial
             Fix For: 3.0


-128 to 128 are guaranteed to be cached and using valueOf in that case is 3.5 
times faster than using contructor

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