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https://issues.apache.org/jira/browse/JENA-153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13142572#comment-13142572
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Richard Cyganiak commented on JENA-153:
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Tested latest SVN and it works. Thanks! (3h 22min from report to fix, wow!)
> xsd:integers larger than java.long.MAX_VALUE silently overflow in ARQ
> ---------------------------------------------------------------------
>
> Key: JENA-153
> URL: https://issues.apache.org/jira/browse/JENA-153
> Project: Jena
> Issue Type: Bug
> Components: ARQ, Jena
> Reporter: Richard Cyganiak
> Assignee: Andy Seaborne
> Priority: Minor
>
> ARQ handles small xsd:integers fine, and it handles large xsd:integers fine,
> but there seems to be some weirdness going on with integers of ~20 digits:
> ASK {FILTER (200000/2=100000)} => true
> ASK {FILTER (20000000/2=10000000)} => true
> ASK {FILTER (2000000000/2=1000000000)} => true
> ASK {FILTER (200000000000/2=100000000000)} => true
> ASK {FILTER (20000000000000/2=10000000000000)} => true
> ASK {FILTER (2000000000000000/2=1000000000000000)} => true
> ASK {FILTER (200000000000000000/2=100000000000000000)} => true
> ASK {FILTER (20000000000000000000/2=10000000000000000000)} => ***false***
> ASK {FILTER (2000000000000000000000/2=1000000000000000000000)} => true
> ASK {FILTER (200000000000000000000000/2=100000000000000000000000)} => true
> ASK {FILTER (20000000000000000000000000/2=10000000000000000000000000)} => true
> These were all tested in http://sparql.org/sparql.html with an arbitrary
> target graph URI.
> It works fine again if dividend and quotient are changed to xsd:decimal:
> ASK {FILTER (20000000000000000000.0/2=10000000000000000000.0)} => true
> I guess this may have something to do with Java's native long being used for
> xsd:integers of some size, and BigInteger for others?
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