hadoop-yarn-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Daniel Templeton (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-4457) Cleanup unchecked types for EventHandler
Date Mon, 14 Dec 2015 22:30:46 GMT
Daniel Templeton created YARN-4457:
--------------------------------------

             Summary: Cleanup unchecked types for EventHandler
                 Key: YARN-4457
                 URL: https://issues.apache.org/jira/browse/YARN-4457
             Project: Hadoop YARN
          Issue Type: Improvement
    Affects Versions: 2.7.1
            Reporter: Daniel Templeton
            Assignee: Daniel Templeton


The EventHandler class is often used in an untyped context resulting in a bunch of warnings
about unchecked usage.  The culprit is the {{Dispatcher.getHandler()}} method.  Fixing the
typing on the method to return {{EventHandler<Event>}} instead of {{EventHandler}} clears
up the errors and doesn't not introduce any incompatible changes.  In the case that some code
does:

{code}
EventHandler h = dispatcher.getHandler();
{code}

it will still work and will issue a compiler warning about raw types.  There are, however,
no instances of this issue in the current source base.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message