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https://issues.apache.org/jira/browse/HADOOP-9094?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13507437#comment-13507437
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Daryn Sharp commented on HADOOP-9094:
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The downside to #2 is you cannot interrogate the exception for the path that
had the problem. You'd be forced to mince the message string which is one of
the other reasons I made them subclasses of {{PathIOException}}.
I think Nicholas also pointed out in the related jira:
bq. I also have thought about changing the base class to interface. However, it
may not be very useful since we cannot catch interface as it no longer extends
Throwable.
So as it stands now, you can simply catch {{PathIOException}} for any path
related exception. #1 suffers from essentially the same ailment Nicholas
points out. Multiple catch clauses would be required to handle path
exceptions, FNF, ACE, etc. Any ideas on how to avoid this?
> Add interface audience and stability annotation to PathExceptions
> -----------------------------------------------------------------
>
> Key: HADOOP-9094
> URL: https://issues.apache.org/jira/browse/HADOOP-9094
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 3.0.0
> Reporter: Suresh Srinivas
> Assignee: Suresh Srinivas
>
> HADOOP-9093 moved path related exceptions to o.a.h.fs. This jira tracks
> adding interface audience and stability to notation to those exceptions. It
> also tracks the comment from HADOOP-9093:
> bq. I propose using FileNotFoundException instead of PathNotFoundException as
> it is already extensively used. Similarly use AccessControlException instead
> of PathAccessException. If folks agree, I will make that change in the next
> patch. Alternatively we could at least make these exceptions subclasses of
> the exception that I am proposing replacing them with.
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