Not possible to add FHIR JSON to XDM

[huthomas]

In org.projecthusky.common.enums.DocumentDescriptor there is an FHIR_JSON enum defined. But after adding such a document to the XDM, on creation org.projecthusky.common.enums.DocumentDescriptor#getDocumentDescriptorForMimeType is called. In that method the FHIR_JSON is not returned for its mimetype and UNKNOWN is returned.

That leads to the following exception.

java.lang.NullPointerException: Cannot invoke "String.toUpperCase()" because "fileNameExtension" is null
	at org.projecthusky.communication.utils.XdsUtil.createXdmDocName(XdsUtil.java:75)
	at org.projecthusky.communication.xd.xdm.IndexHtm.createContents(IndexHtm.java:158)
	at org.projecthusky.communication.xd.xdm.IndexHtm.(IndexHtm.java:124)
	at org.projecthusky.communication.xd.xdm.IndexHtm.(IndexHtm.java:105)
	at org.projecthusky.communication.ConvenienceCommunication.createXdmContents(ConvenienceCommunication.java:448)

FHIR_JSON should be added to the org.projecthusky.common.enums.DocumentDescriptor#getDocumentDescriptorForMimeType method.