[jira] [Resolved] (ACCUMULO-206) removing "throws IOException" from method breaks backwards compatibility

["Billie Rinaldi (Resolved) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ACCUMULO-206?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Billie Rinaldi resolved ACCUMULO-206.
-------------------------------------

    Resolution: Fixed
    
> removing "throws IOException" from method breaks backwards compatibility
> ------------------------------------------------------------------------
>
>                 Key: ACCUMULO-206
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-206
>             Project: Accumulo
>          Issue Type: Bug
>          Components: client
>            Reporter: Adam Fuchs
>            Assignee: Billie Rinaldi
>            Priority: Blocker
>
> One example of this is the org.apache.accumulo.core.client.ScannerBase.setScanIterators method. In version 1.3.x this has the signature:
> {noformat}
> public void setScanIterators(int priority, String iteratorClass, String iteratorName) throws IOException;
> {noformat}
> But, in the 1.4 branch it reads:
> {noformat}
> public void setScanIterators(int priority, String iteratorClass, String iteratorName);
> {noformat}
> Code that compiled against 1.3 and attempts to catch that IOException does not compile against 1.4 with this change, giving the following error:
> {noformat}
> exception java.io.IOException is never thrown in body of corresponding try statement
> {noformat}
> I think we should maintain the previous signature on this method in the 1.4 release, even if it doesn't throw an exception (especially because it's deprecated). We also need to look for any other cases like this and decide what to do on a case-by-case basis.

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