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https://issues.apache.org/jira/browse/MATH-861?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Luc Maisonobe resolved MATH-861.
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Resolution: Fixed
Fixed in subversion repository as of r1455233.
Thanks for the suggestion.
> Make sure that entries of FieldVectors cannot be null
> -----------------------------------------------------
>
> Key: MATH-861
> URL: https://issues.apache.org/jira/browse/MATH-861
> Project: Commons Math
> Issue Type: Improvement
> Reporter: Sébastien Brisard
> Labels: exception, field, linear
> Fix For: 3.2
>
>
> As part of MATH-854, an extensive review of exceptions possibly thrown
> throughout CM is being carried out.
> It turns out that in {{FieldVector}}, {{NullArgumentException}}s may occur
> because {{FieldElement}} throws such an exception for all elementary
> operation. In {{FieldVector}}, this has an impact on
> * operations involving a {{FieldElement}} as an argument, eg {{mapAdd(T d)}}
> and the likes: for these method, the throws clause has been altered.
> * operations involving a {{FieldVector}} as an argument, eg
> {{add(FieldVector<T> v}}. In order to avoid catching and rethrowing a
> {{NullArgumentException}}, all implementations of {{FieldVector}} should make
> sure that no vector entry can be {{null}}.
> As a consequence
> * the above statement must be added to the class comment of {{FieldVector}}
> * all constructors, setters and the likes must explicitely check for {{null}}
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