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https://issues.apache.org/jira/browse/AVRO-1620?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Doug Cutting updated AVRO-1620:
-------------------------------
Attachment: AVRO-1620.patch
Here's a fix that gets the classloader when creating the builder. This passes
the test provided in the earlier patch. Does it look sufficient?
> Classloader Differences When Copying Records Results in ClassCastException
> --------------------------------------------------------------------------
>
> Key: AVRO-1620
> URL: https://issues.apache.org/jira/browse/AVRO-1620
> Project: Avro
> Issue Type: Bug
> Components: java
> Affects Versions: 1.7.7
> Reporter: Allan Shoup
> Attachments: AVRO-1620.patch, AVRO-1620.patch
>
>
> Similar to the situation described in AVRO-1240, a parent classloader
> contains the avro classes and a separate classloader contains the avro
> specific record classes. When using the generated
> {code}
> newBuilder(SpecificRecord other)
> {code}
> or
> {code}
> newBuilder(SpecificRecord.Builder other)
> {code}
> methods to duplicate records, the generated code will cause an exception
> similar to this:
> {noformat}
> Caused by: java.lang.ClassCastException:
> org.apache.avro.generic.GenericData$Record cannot be cast to
> my.specific.Record
> at my.specific.Record$Builder.<init>(Record.java:149)
> at my.specific.Record$Builder.<init>(Record.java:121)
> at my.specific.Record.newBuilder(Record.java:115)
> ... 19 more
> {noformat}
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