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https://issues.apache.org/jira/browse/HADOOP-1601?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Enis Soztutar updated HADOOP-1601:
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Attachment: genericWritable_v1.0.patch
This patch delegates object initialization to ReflectionUtils, and changes
GenericWritable to implement Configurable. A test case for GenericWritable is
added.
I have also found a subtle bug in {{GenericWritable#set()}}. If {{getTypes()}}
returns classes such that a subclass is listed before its superclass, then the
type of the wrapped object is set wrong, since {{Class#isInstanceOf()}} returns
true. The bug is fixed by comparing class names.
> GenericWritable should use ReflectionUtils.newInstance to avoid problems with
> classloaders
> ------------------------------------------------------------------------------------------
>
> Key: HADOOP-1601
> URL: https://issues.apache.org/jira/browse/HADOOP-1601
> Project: Hadoop
> Issue Type: Bug
> Components: io
> Affects Versions: 0.15.0
> Reporter: Owen O'Malley
> Assignee: Enis Soztutar
> Fix For: 0.15.0
>
> Attachments: genericWritable_v1.0.patch
>
>
> GenericWritable currently uses Class.newInstance and it should use
> hadoop.utils.ReflectionUtils.newInstance. Furthermore, GenericWritable should
> be Configurable and should configure the nested objects. This will prevent a
> lot of classloader issues and allow the objects to get a configuration.
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