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From "Vojtech Knyttl (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FREEMARKER-48) When custom fremarker method throws exception, it is impossible to find line/row where called
Date Sat, 25 Mar 2017 06:58:41 GMT
Vojtech Knyttl created FREEMARKER-48:
----------------------------------------

             Summary: When custom fremarker method throws exception, it is impossible to find
line/row where called
                 Key: FREEMARKER-48
                 URL: https://issues.apache.org/jira/browse/FREEMARKER-48
             Project: Apache Freemarker
          Issue Type: Bug
          Components: engine
    Affects Versions: 2.3.25-incubating
         Environment: Any
            Reporter: Vojtech Knyttl


Consider this stacktrace:

https://gist.github.com/knyttl/dba8f94b9736eb2751074c34dce7b467

On line `DispatcherServlet.renderView(DispatcherServlet.java:308)` I have started freemarker
to render a template. During that process it uses custom method (`HrefMethod.exec(HrefMethod.java:28)`),
but this method threw an exception. However Freemarker does not report a line/row of the template
where this method was called making it very hard for debug.

I would be happy if `freemarker.core.MethodCall._eval(MethodCall.java:65)` had some try-catch
blcok, that in case of an exception would add lines/rows/details of the element that caused
the exception.



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