Hi @Michael Wood ! What is the type of context.FHIRResponse.Body? Interoperability with FHIR usually works with HS.FHIRServer.Interop.Response class in wich the JSON FHIR is saved as a Stream.

Could you tell us something else about what are you doing?

Check this doc:

https://docs.intersystems.com/iris20241/csp/docbook/Doc.View.cls?KEY=ROA...

Reading the returned error it looks like that java 11 is mandatory.

You can find a short description about the function clicking on it:

As the error says, you have to install the JDK 11 on your computer from here and configure JAVA_HOME system environment variable:

Perhaps you have already configured it but with newer version.

You can check this documentation page about releases (and cd and em meaning) 

https://docs.intersystems.com/iris20241/csp/docbook/Doc.View.cls?KEY=PAG...

What is the type of OtherProcedures property? 

obj should be a dynamic array.

From the official documentation: 

The compact database operation is designed to run concurrently with normal database activity. The operation does consume some system resources, however, and may not complete if the system is under extremely high load. For these reasons, InterSystems recommends running this and other database reorganization operations (including compacting and defragmenting globals) during off-peak hours, and running only one such operation on a system at a time.

https://docs.intersystems.com/iris20241/csp/docbook/DocBook.UI.Page.cls?...

As we say in Spain, "The experience's voice speaks"

Who breaks the wheel pays for it.

You can do it by hand, specifying in the JDBC url used the schema to connect, so you have to disconnect from the previous connection and connect again with the new **CORRECTION** namespace:

jdbc:CACHE://127.0.0.1:1972/NAMESPACE1--> jdbc:CACHE://127.0.0.1:1972/NAMESPACE2

And you can take a look to this article from @Yuri Marx 
https://community.intersystems.com/post/debug-objectscript-code-using-vs...

Regarding the documentation looks like you need to configure the port in the Business Service:

(Configured Web Services exposed using the SOAP Inbound Adapter may also be invoked with this URL parameter but because each configured Inbound Adapter listens on its own TCP/IP port this parameter is just a safety check for them.)

https://docs.intersystems.com/iris20241/csp/documatic/%25CSP.Documatic.c...

Try with _SYSTEM or SUPERUSER

Have you tried this package to parse HL7 from ER7 format to XML (and viceversa)?

https://openexchange.intersystems.com/package/Healthcare-HL7-XML