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https://issues.apache.org/jira/browse/MATH-1408?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15961481#comment-15961481
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Bruno P. Kinoshita commented on MATH-1408:
------------------------------------------
Thank you Gilles, for both assigning and also for starting the thread in the
mailing list. I will reply to ask specifically about the Frequency class right
now. Hopefully the other use cases of ClassCastException will be easier to
handle.
> Do not use exceptions for control flow
> --------------------------------------
>
> Key: MATH-1408
> URL: https://issues.apache.org/jira/browse/MATH-1408
> Project: Commons Math
> Issue Type: Task
> Reporter: Gilles
> Assignee: Bruno P. Kinoshita
> Priority: Minor
> Labels: control, exception, flow
> Fix For: 4.0
>
>
> There are several occurrences where exception is used to control flow.
> Code such as
> {noformat}
> try {
> // block A
> } catch (ClassCastException e) {
> // block B
> }
> {noformat}
> where "block A" is trying to cast an object "o" to "SomeClass", should be
> changed to
> {noformat}
> if (o instanceof SomeClass) {
> // block A
> } else {
> // block B
> }
> {noformat}
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