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https://issues.apache.org/jira/browse/JENA-1066?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stuart Williams updated JENA-1066:
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Attachment: git-diff.txt
BigDecimalTestCase.java
> Node_Factory.createLiteralByValue creates malformed literals from BigDecimal
> values
> -----------------------------------------------------------------------------------
>
> Key: JENA-1066
> URL: https://issues.apache.org/jira/browse/JENA-1066
> Project: Apache Jena
> Issue Type: Bug
> Components: Core, Datatypes
> Affects Versions: Jena 2.13.0, Jena 3.0.0
> Reporter: Stuart Williams
> Attachments: BigDecimalTestCase.java, git-diff.txt
>
>
> I've been working with some numeric data and have run into some problems when
> using:
> ```
> Node_Factory.createLiteralByValue(Object value, RDFDatatype dtype)
> ```
> when value is a BigDecimal.
> Jena ultimately uses `BigDecimal.toString()` to generate lexical forms for
> well-formed-ness checking and to provide results for `.getLexicalForm()` on
> the resulting `Node_Literal`. Unfortunately Java 1.5 changed the behaviour of
> `BigDecimal.toString()` and added `BigDecimal.toPlainString()` which it
> describes as an analog of the java 1.4 `BigDecimal.toString()` and which
> specifically does not use exponential notation in its output. `xsd:decimal`
> lexicalforms do not allow exponential notation
> I'll attached small java program that illustrates the problem. The cases
> where a dud literal form (i.e. as a literal in exponent from) are fair enough.
> I've also locally created a fix that special cases instances of `BigDecimal`
> in a couple of places. Patch file to be attached.
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