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https://issues.apache.org/jira/browse/MAHOUT-134?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Burrell Donkin updated MAHOUT-134:
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Attachment: mahout-cluster-format-error.patch
This patch insists that the implementation returns not null. When the format is
unknown an IllegalArgumentException will be thrown. If the caller can recover
from a badly formatted cluster this exception can be caught. Otherwise, it
provides reasonable diagnostic information.
> [PATCH] Cluster decode error handling
> -------------------------------------
>
> Key: MAHOUT-134
> URL: https://issues.apache.org/jira/browse/MAHOUT-134
> Project: Mahout
> Issue Type: Improvement
> Affects Versions: 0.2
> Reporter: Robert Burrell Donkin
> Attachments: mahout-cluster-format-error.patch
>
>
> ATM the javadocs are unclear as to whether null is an acceptable return value
> and callers do not null check the return value. However, the implementation
> may return null in or throw other runtime exceptions when the format is not
> correct. This makes it hard to diagnose when there's a problem with the
> format.
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