XMLEncoder failing to serialize classes containing Enums for non-SUN JREs -------------------------------------------------------------------------
Key: HIVE-1686 URL: https://issues.apache.org/jira/browse/HIVE-1686 Project: Hadoop Hive Issue Type: Bug Components: Serializers/Deserializers Affects Versions: 0.5.0 Environment: SLES 10 SP2, IBM Java 1.6 SR8 Reporter: Stephen Watt Priority: Minor Fix For: 0.5.1 If one is using Hive 0.5 with IBM Java 1.6 certain Hive Queries will fail in the Hive CLI, such as "SELECT Count(1) from TABLE" with the error "failed to write expression: GenericUDAFEvaluator$Mode=Class.new()". This is due to the fact that XMLEncoder in the JRE's beans.jar is not able to serialize Classes with Enums without an explicitly having an EnumPersistenceDelegate assigned to each class that needs to be serialized. This was an issue in SUN JDK 1.5 but not 1.6 and is still an issue in IBM Java 1.6. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.