Core cannot parse '_' in URLs

[jscyo]

🐛 Bug Report

If the domain name contains an '_' the server will throw an IllegalArguementException.

An example of setting _ in the domain name is when referring to the core by its service name in a docker container and the service name contains an _

This also could happen with a db URI which contains a '_' . URI parsing will also fail for this. Similarly, this can happen when the docker service names

Useful information

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[rituraj2000]

@jscyo please assign it to me if it is still open