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https://issues.apache.org/jira/browse/COLLECTIONS-859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18100899#comment-18100899
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ZAID MULLA commented on COLLECTIONS-859:
----------------------------------------
Thanks, Gary — confirmed. My PR
(https://github.com/THE-ZAID01/commons-collections/pull/1) has been closed
since the fix is already merged into master (apache@3c77e23), and I've been
credited in changes.xml. Appreciate the review!
> Ambiguities in the Javadoc for PredicateUtils
> ---------------------------------------------
>
> Key: COLLECTIONS-859
> URL: https://issues.apache.org/jira/browse/COLLECTIONS-859
> Project: Commons Collections
> Issue Type: Bug
> Reporter: Daniele
> Priority: Minor
> Fix For: 4.6.0
>
>
> I found some ambiguities in the javadoc regarding the behavior of some
> methods:
> {*}PredicateUtils.nullIsExceptionPredicate(Predicate<? super T>):{*}{*}{*}
> When it says "return the predicate" doesn't mean return the predicate
> parameter (args[0]), but return a new predicate that checks if the input is
> null and, if so, throws an exception, otherwise, delegates the evaluation to
> predicate (args[0]).
> *PredicateUtils.nullIsFalsePredicate(Predicate<? super T>):*
> When it says "return the predicate" doesn't mean return the predicate
> parameter (args[0]), but return a new predicate that checks if the input is
> null and, if so, return false, otherwise, delegates the evaluation to
> predicate (args[0]).
> *PredicateUtils.nullIsTruePredicate(Predicate<? super T>):*
> W{*}{*}hen it says "return the predicate" doesn't mean return the predicate
> parameter (args[0]), but return a new predicate that checks if the input is
> null and, if so, return true, otherwise, delegates the evaluation to
> predicate (args[0]).
> *PredicateUtils.transformedPredicate(Transformer<? super T, ? extends T>,
> Predicate<? super T>):*
> When it says "return the predicate" doesn't mean return the predicate
> parameter (args[0]), but return a new predicate that create a predicate that
> transforms the input object before passing it to the predicate
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