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https://issues.apache.org/jira/browse/DERBY-6493?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13920739#comment-13920739
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ASF subversion and git services commented on DERBY-6493:
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Commit 1574425 from [~knutanders] in branch 'code/trunk'
[ https://svn.apache.org/r1574425 ]
DERBY-6493: Improve reporting of exceptions wrapped in InvocationTargetException
Unwrap InvocationTargetException and PrivilegedActionException before
reporting them so that it is easier to see what the real error is.
> 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
> 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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