Jan Martin Keil created JENA-1955:
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Summary: Make use of Optional or NoSuchElementException
Key: JENA-1955
URL: https://issues.apache.org/jira/browse/JENA-1955
Project: Apache Jena
Issue Type: Improvement
Reporter: Jan Martin Keil
Many methods currently return {{null}} or an empty String, if something was not
present. It would significantly ease writing stable and fault-tolerant code, if
this methods would be replaced be methods returning an {{java.util.Optional}}
(preferred) or throwing an {{NoSuchElementException}} instead.
Best way to do that would probably be to deprecate the current methods for the
time being and add new methods using {{java.util.Optional}} or
{{NoSuchElementException}}.
An probably incomplete/example list of affected methods:
* {{QuerySolution#get(String)}}
* {{QuerySolution#getResource(String)}}
* {{QuerySolution#getLiteral(String)}}
* {{Literal#getLanguage()}}
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