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From "Constantin Mitocaru (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (JEXL-192) Invalid return type when expected result is null
Date Tue, 22 Mar 2016 13:14:25 GMT

     [ https://issues.apache.org/jira/browse/JEXL-192?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Constantin Mitocaru updated JEXL-192:
-------------------------------------
    Summary: Invalid return type when expected result is null  (was: Invalid return type when
expected rsult is null)

> Invalid return type when expected result is null
> ------------------------------------------------
>
>                 Key: JEXL-192
>                 URL: https://issues.apache.org/jira/browse/JEXL-192
>             Project: Commons JEXL
>          Issue Type: Bug
>    Affects Versions: 3.0
>            Reporter: Constantin Mitocaru
>            Priority: Blocker
>
> In jexl2 this code correctly outputs the line:
> {code}
> null
> {code}
> {code:java}
>         JexlEngine jexl = new JexlEngine();
>         Record r = new Record();
>         r.setHeader(new RecordHeader());
>         JexlContext jc = new MapContext();
>         jc.set("r", r );
>         jc.set("com.s.objects.record.RecordUtils", com.s.objects.record.RecordUtils.class
);
>         Expression e = jexl.createExpression( "com.s.objects.record.RecordUtils.getHeaderAgeOrResolveItFromDOB(r)"
);
>         System.out.println( e.evaluate(jc) );        
> {code}
> The signature of the method getHeaderAgeOrResolveItFromDOB() is:
> {code:java}
>         public static Integer getHeaderAgeOrResolveItFromDOB( final Record rec ) {
>         ...
>         }
> {code}
> But in jexl3 this code produces:
> {code}
> 	class com.s.objects.record.RecordUtils
> {code}
> {code:java}
>         JexlEngine jexl = new JexlBuilder().create();
>         Record r = new Record();
>         r.setHeader(new RecordHeader());
>         JexlContext jc = new MapContext();
>         jc.set("r", r );
>         jc.set("com.s.objects.record.RecordUtils", com.s.objects.record.RecordUtils.class
);
>         JexlExpression e = jexl.createExpression( "com.s.objects.record.RecordUtils.getHeaderAgeOrResolveItFromDOB(r)"
);
>         System.out.println( e.evaluate(jc) );        
> {code}
> So it returns the class of the utility rather than the value null!
> I think jexl3 version 3.0 was not really ready for prime time.
> I really screwed up my project upgrading to 3.0.
> When do you guys anticipate to release 3.1?
> Is there a way to work with a snapshot after this fix?



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