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https://issues.apache.org/jira/browse/OPENNLP-776?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15549163#comment-15549163
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Joern Kottmann commented on OPENNLP-776:
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Now speaking here about the serialization_proxy.patch approach. I try to 
understand what is necessary to make this work with Kyro serialization.

Do you use the ExternalizableSerializer as described here [1]?
If not, which mechanism inside Kyro is used in your application to 
serialize/deserialize the models?

[1] https://github.com/EsotericSoftware/kryo#using-standard-java-serialization



> Model Objects should be Serializable
> ------------------------------------
>
>                 Key: OPENNLP-776
>                 URL: https://issues.apache.org/jira/browse/OPENNLP-776
>             Project: OpenNLP
>          Issue Type: Improvement
>    Affects Versions: tools-1.5.3
>            Reporter: Tristan Nixon
>            Assignee: Joern Kottmann
>            Priority: Minor
>              Labels: features, patch
>             Fix For: 1.6.1
>
>         Attachments: externalizable.patch, serializable-basemodel.patch, 
> serialization_proxy.patch
>
>
> Marking model objects (ParserModel, SentenceModel, etc.) as Serializable can 
> enable a number of features offered by other Java frameworks (my own use case 
> is described below). You've already got a good mechanism for 
> (de-)serialization, but it cannot be leveraged by other frameworks without 
> implementing the Serializable interface. I'm attaching a patch to BaseModel 
> that implements the methods in the java.io.Externalizable interface as 
> wrappers to the existing (de-)serialization methods. This simple change can 
> open up a number of useful opportunities for integrating OpenNLP with other 
> frameworks.
> My use case is that I am incorporating OpenNLP into a Spark application. This 
> requires that components of the system be distributed between the driver and 
> worker nodes within the cluster. In order to do this, Spark uses Java 
> serialization API to transmit objects between nodes. This is far more 
> efficient than instantiating models on each node independently.



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