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https://issues.apache.org/jira/browse/HADOOP-4009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12625576#action_12625576
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Tsz Wo (Nicholas), SZE commented on HADOOP-4009:
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> Unfortunately, this may endup throwing exceptions not declared in the
> signature.
It is not possible since the program won't be compiled.
> One must rethrow the deepest declared exception
Should it rethrow the *original/wrapped* exception? In the example "foo()
throws A, Ab, Ac", if server throws Abb which is a subclass of Ab. I think we
should throw Abb but not Ab.
> Declare HDFS exceptions in the HDFS interface and also in class FileSystem
> and rethrow the encapsulated exception
> -----------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-4009
> URL: https://issues.apache.org/jira/browse/HADOOP-4009
> Project: Hadoop Core
> Issue Type: Sub-task
> Reporter: Sanjay Radia
>
> Server-side exceptions are encapsulated in the remote exception (as the
> class name and the error string ).
> The client side and FileSystem does not declare or thrown the these
> encapsulated exception.
> Work Items
> * Declare the exceptions in FileSystem and the HDFS interface (but still as
> subclasses of IOException)
> * Rethrow encapsulated declared exceptions if they are the declared
> exception.
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