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https://issues.apache.org/jira/browse/AVRO-1183?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Doug Cutting updated AVRO-1183:
-------------------------------
Resolution: Fixed
Status: Resolved (was: Patch Available)
I added a test and committed this.
> Avro Pair fails to initialize when either they key or value is a list.
> ----------------------------------------------------------------------
>
> Key: AVRO-1183
> URL: https://issues.apache.org/jira/browse/AVRO-1183
> Project: Avro
> Issue Type: Bug
> Components: java
> Affects Versions: 1.7.2
> Reporter: Jeffrey Theobald
> Assignee: Doug Cutting
> Priority: Minor
> Fix For: 1.7.3
>
> Attachments: AVRO-1183.patch
>
>
> Hello,
> It seems that a change somewhere between 1.5.7 and 1.7.2 (maybe AVRO-966 ?)
> has broken the Avro Pair object, so that you can no longer instantiate a pair
> when either the key or the value is a list.
> To replicate this bug, try the following:
> {code}
> Integer key = new Integer(0);
> List<Integer> list = new ArrayList<Integer>();
> Pair<Integer, List<Integer>> pair = new Pair<Integer, List<Integer>>(key,
> list);
> {code}
> It will produce something like the following exception:
> {noformat}org.apache.avro.AvroRuntimeException: Can't find element type of
> Collection
> at
> org.apache.avro.reflect.ReflectData.createSchema(ReflectData.java:281)
> at
> org.apache.avro.specific.SpecificData.getSchema(SpecificData.java:151)
> at org.apache.avro.mapred.Pair.<init>(Pair.java:312)
> .....SNIP.....
> {noformat}
> I've used Integer here for illustration but it also affects SpecificRecord
> objects.
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