[jira] [Resolved] (DERBY-6493) Improve reporting of exceptions wrapped in InvocationTargetException

["Knut Anders Hatlen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DERBY-6493?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Knut Anders Hatlen resolved DERBY-6493.
---------------------------------------

          Resolution: Fixed
       Fix Version/s: 10.11.0.0
    Issue & fix info:   (was: Patch Available)

> Improve reporting of exceptions wrapped in InvocationTargetException
> --------------------------------------------------------------------
>
>                 Key: DERBY-6493
>                 URL: https://issues.apache.org/jira/browse/DERBY-6493
>             Project: Derby
>          Issue Type: Improvement
>          Components: JDBC
>    Affects Versions: 10.11.0.0
>            Reporter: Knut Anders Hatlen
>            Assignee: Knut Anders Hatlen
>              Labels: backport_reject_10_10
>             Fix For: 10.11.0.0
>
>         Attachments: d6493-1a.diff
>
>
> When Derby encounters an exception in a method that's called via reflection, the actual problem may be well hidden at the end of a long exception chain. For example:
> ij> create table t(x int);
> 0 rows inserted/updated/deleted
> ij> call syscs_util.syscs_import_table(null, 'T', null, null, null, null, 0);
> ERROR 38000: The exception 'java.sql.SQLException: The exception 'java.lang.reflect.InvocationTargetException' was thrown while evaluating an expression.' was thrown while evaluating an expression.
> ERROR 38000: The exception 'java.lang.reflect.InvocationTargetException' was thrown while evaluating an expression.
> ERROR XJ001: Java exception: ': java.lang.reflect.InvocationTargetException'.
> ERROR XIE05: Data file cannot be null. 
> Only the last exception provides any useful information to the user in this case. I think it would be good to remove the InvocationTargetException from the chain so that it's easier to spot the actual problem.



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