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https://issues.apache.org/jira/browse/JOHNZON-110?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Romain Manni-Bucau reassigned JOHNZON-110:
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Assignee: Romain Manni-Bucau
> Support for large integrals
> ---------------------------
>
> Key: JOHNZON-110
> URL: https://issues.apache.org/jira/browse/JOHNZON-110
> Project: Johnzon
> Issue Type: Improvement
> Affects Versions: 0.9.5
> Reporter: Michele Vivoda
> Assignee: Romain Manni-Bucau
> Fix For: 1.1.0
>
>
> While testing javax.json implementations I discovered Johnzon does not
> support very big integral numbers , they loose the value when converted to
> Long and might also become negative. Big decimals works fine.
> Other implementations tested, the glassfish one and cookjson both support big
> integrals as java.math.BigInteger
> I would suggest to test the length of an integral lexical without sign
> (being an integral has no decimals, no exponential part) , if is more than 18
> digits, use java.math.BigInteger
> See also the implementation of Glassfish
> https://java.net/projects/jsonp/sources/git/content/impl/src/main/java/org/glassfish/json/JsonNumberImpl.java?rev=de226229bd4bfab4aa87c11cab2f54efc50dffcb
> JsonTokenizer.isDefinitelyLong at
> https://java.net/projects/jsonp/sources/git/content/impl/src/main/java/org/glassfish/json/JsonTokenizer.java?rev=de226229bd4bfab4aa87c11cab2f54efc50dffcb
> Regards,
> Michele Vivoda
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