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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-6943) Improve exceptions within TypeExtractionUtils#getSingleAbstractMethod
Date Mon, 19 Jun 2017 09:15:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-6943?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16053674#comment-16053674

ASF GitHub Bot commented on FLINK-6943:

GitHub user dawidwys opened a pull request:


    [FLINK-6943] Improve exceptions within TypeExtractionUtils#getSingleA…

    Thanks for contributing to Apache Flink. Before you open your pull request, please take
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    If your changes take all of the items into account, feel free to open your pull request.
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    - [ ] General
      - The pull request references the related JIRA issue ("[FLINK-XXX] Jira title text")
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You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/dawidwys/flink flink6943

Alternatively you can review and apply these changes as the patch at:


To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #4140
commit 316afb3085486186a098b4aa9607a0b269a5312b
Author: Dawid Wysakowicz <dwysakowicz@apache.org>
Date:   2017-06-19T07:38:25Z

    [FLINK-6943] Improve exceptions within TypeExtractionUtils#getSingleAbstractMethod


> Improve exceptions within TypeExtractionUtils#getSingleAbstractMethod
> ---------------------------------------------------------------------
>                 Key: FLINK-6943
>                 URL: https://issues.apache.org/jira/browse/FLINK-6943
>             Project: Flink
>          Issue Type: Bug
>          Components: Core
>            Reporter: Dawid Wysakowicz
>            Assignee: Dawid Wysakowicz
> Exception message seems to be inexact. 
> Also if there is no SAM, sam would be null upon returning from the method.
> The suggestion from a review was to change the message and add a check (for null sam)
prior to returning.
> Another suggestion is to check if the given method is an interface, as only for interface
it is possible to pass lambda.

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