Claude Warren created JENA-1514:
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Summary: Class cast exception with BigInteger literals.
Key: JENA-1514
URL: https://issues.apache.org/jira/browse/JENA-1514
Project: Apache Jena
Issue Type: Bug
Components: Jena
Affects Versions: Jena 3.6.0, Jena 3.7.0
Reporter: Claude Warren
Attachments: BigIntIssue.java
When saving a BigInteger as a literal it is converted into an
XSDBaseNumericType.
When that type is read back it is converted into the smallest numeric data
type that can hold the value; a narrowing if you will.
While this works fine for primitive and primitive wrapping types (e.g. int and
Integer) there is no automatic boxing available for BigInteger so attempting to
retrieve the value of a BigInteger that is smaller than the Long.MAX_VALUE will
result in a class cast exception when the primitive type is cast to the
BigInteger.
I suspect the similar issues arise when BigDecimal is also used but I have not
tested.
Should we address this issue by creating a BigInteger and BigDecimal type that
perhaps extends XSDBaseNumericType? Should we address this issue at all and
just post a warning?
Test code is included to show the issue.
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