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https://issues.apache.org/jira/browse/STANBOL-216?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13042300#comment-13042300
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Andrea Nuzzolese commented on STANBOL-216:
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It depends on the fact that the method getURI of VariableAtom always returns
null.
So when an atom (in the issue description it is the IndividualPropertyAtom)
tries to convert a variable (e.g. ?x) into a full qualified URI for SWRL
representation it returns a NullPointerException.
> Method getURI of VariableAtom in rules.manager returns NULL
> -----------------------------------------------------------
>
> Key: STANBOL-216
> URL: https://issues.apache.org/jira/browse/STANBOL-216
> Project: Stanbol
> Issue Type: Bug
> Components: KReS
> Reporter: Concetto Elvio Bonafede
>
> java.lang.NullPointerException
> at
> org.apache.stanbol.rules.manager.atoms.IndividualPropertyAtom.toSWRL(IndividualPropertyAtom.java:119)
> at org.apache.stanbol.rules.manager.RuleImpl.toSWRL(RuleImpl.java:205)
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