Garret Wilson created JEXL-341:
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             Summary: Errors needs to provide more information on caught 
exceptions.
                 Key: JEXL-341
                 URL: https://issues.apache.org/jira/browse/JEXL-341
             Project: Commons JEXL
          Issue Type: Improvement
    Affects Versions: 3.1
            Reporter: Garret Wilson


I have a method {{bar()}} that happens to throw a {{NullPointerException}}. A 
bug, of course. But when I use the following expression in JEXL:

{noformat}foo.bar(){noformat}

The {{JexlException.getMessage()}} result is:

{noformat}io.guise.mesh.JexlMexlEvaluator.evaluate@1:… bar{noformat}

This is too little information to be helpful (and too much irrelevant 
information— see JEXL-340). If a {{NullPointerException}} occurred during 
invocation of the method, it would be nice to know that. Otherwise the 
developer has no idea if JEXL couldn't find {{bar()}} or what exactly the 
problem was.

Obviously this is is a low priority bug that is in no way blocking anything. 
But it sure would be helpful if it could be improved one day.



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