superfluously null check of SparseIterator.next()
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Key: MATH-627
URL: https://issues.apache.org/jira/browse/MATH-627
Project: Commons Math
Issue Type: Improvement
Affects Versions: 3.0
Reporter: Arne Plöse
Priority: Minor
Looking at the implementation of SparseIterator in
OpenMapRealVector.OpenMapSparseIterator there is no chance that the entry
return by next() is ever null - so there is no need to chek this in nearly
every loop?
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