I get a Null pointer exception invariably now when I output the response
as a String.

java.lang.NullPointerException
        at
org.keel.services.model.defaultmodel.AbstractResponseElement.toString(AbstractResponseElement.java:184)
        at
org.keel.services.model.defaultmodel.DefaultModelResponse.toString(DefaultModelResponse.java:492)

Anybody familiar with PrettyPrinterXmlWriter, implemented in
AbstractResponseElement?  Anyone else have a solution?

TIA
gene
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