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Posted to dev@avro.apache.org by "Greg McNutt (JIRA)" <ji...@apache.org> on 2016/02/10 16:59:18 UTC

[jira] [Created] (AVRO-1799) java: GenericData.toString() mutates underlying ByteBuffer backed data

Greg McNutt created AVRO-1799:
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             Summary: java: GenericData.toString() mutates underlying ByteBuffer backed data
                 Key: AVRO-1799
                 URL: https://issues.apache.org/jira/browse/AVRO-1799
             Project: Avro
          Issue Type: Bug
          Components: java
    Affects Versions: 1.8.0
            Reporter: Greg McNutt
            Priority: Critical


Around line 550, the writeEscapedString() method, used to serialize a byte array, will alter the underlying ByteBuffer's pointer.  Meaning subsequent uses of a toString()'d avro object will yield different results.

Need to not use a generic decode on a ByteBuffer; either clone the element (expensive), or iterate over the elements with an external index.



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