Inserted null values

[marcverhagen]

Handing a SOAP request to a service can cause trouble if the request has an incomplete LIF object. For example, sending the following causes trouble.

{
    "discriminator": "http://vocab.lappsgrid.org/ns/media/jsonld#lif", 
    "payload": {
        "text": {
            "@value": "The door."
        }
    }
}

But this is fine:

{
    "discriminator": "http://vocab.lappsgrid.org/ns/media/jsonld#lif", 
    "payload": {
        "@context": "http://vocab.lappsgrid.org/context-1.0.0.jsonld",
        "metadata": {},
        "text": {
            "@value": "The door is open."
        },
        "views": []
    }
}

The error we get for the former is

Traceback (most recent call last):
  File "lapps.py", line 66, in <module>
    result = json.loads(client.service.execute(service_input))
  File "/usr/local/lib/python3.6/site-packages/zeep/proxy.py", line 45, in __call__
    kwargs,
  File "/usr/local/lib/python3.6/site-packages/zeep/wsdl/bindings/soap.py", line 130, in send
    return self.process_reply(client, operation_obj, response)
  File "/usr/local/lib/python3.6/site-packages/zeep/wsdl/bindings/soap.py", line 195, in process_reply
    return self.process_error(doc, operation)
  File "/usr/local/lib/python3.6/site-packages/zeep/wsdl/bindings/soap.py", line 299, in process_error
    detail=fault_node.find("detail"),
zeep.exceptions.Fault: groovy.lang.GroovyRuntimeException: Ambiguous method overloading for method org.lappsgrid.serialization.Utils#deepCopy.
Cannot resolve which method to invoke for [null] due to overlapping prototypes between:
	[interface java.util.List]
	[interface java.util.Map]
	[interface java.util.Set]

This was done using zeep in a Python script using http://eldrad.cs-i.brandeis.edu:8080/service_manager/wsdl/brandeis_eldrad_grid_1:stanfordnlp.tokenizer_2.0.4. The error can be replicated with SoapUI.

[ksuderman]

I suspect this line is the problem. It should be checking if map.metadata is null before calling Utils.deepCopy.