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https://issues.apache.org/jira/browse/JEXL-172?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Henri Biestro resolved JEXL-172.
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Resolution: Not A Problem
When all operands are integers, the operation is performed on integers without
conversion. In this case (1 / 100) returns 0 and 1 / 0 throws an exception in
strict mode.
The workaround is to use 'doubles' in you expression like: (1 / (1.0 / 100))
Or you can derive JexlArithmetic and overload (at least) the divide method.
> Unexpected divide error for numerator which contains division in strict mode
> ----------------------------------------------------------------------------
>
> Key: JEXL-172
> URL: https://issues.apache.org/jira/browse/JEXL-172
> Project: Commons JEXL
> Issue Type: Bug
> Affects Versions: 2.1.1
> Environment: Java 7 OpenJDK
> Reporter: Lars Helge Øverland
> Priority: Minor
>
> It seems that evaluating expressions which contains nested divisions causes
> an exception to be thrown with cause "divide error".
> The following expression is valid math and should return 100:
> 1 / (1 / 100)
> Instead it throws:
> org.apache.commons.jexl2.JexlException:
> org.hisp.dhis.commons.util.ExpressionUtils.evaluate@81![0,13]: '1 / (1 /
> 100);' divide error
> This only applies to strict mode. However it could be argued that this should
> pass even in strict mode.
> I could not find anything in the docs about this so please excuse me if I
> missed something.
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