How to override mime-type based on already registered file extension

[Christian Wolf]

Hi,

I would like to override a file extension already registered in the
tika-mimetypes.xml file.

I know that the custom-mimetypes.xml file allows to register new custom
mimetypes and it works well for new file extenstions (glob pattern) that do
not already exist in tika-mimetypes.xml.

Lets take the following entry in tika-mimetypes.xml:

  <mime-type type="application/x-dtbresource+xml">
    <glob pattern="*.res"/>
  </mime-type>

What should I do to override the existing mime-type value to return
"application/my-specific-resource" instead of
"application/x-dtbresource+xml" ?

If I override this entry in the custom-mimetypes.xml I get the following
exception:
...
Caused by: org.xml.sax.SAXException: Conflicting extension pattern: .res
org.apache.tika.mime.MimeTypeException: Conflicting extension pattern: .res

I am using tika 1.19.1

Thanks for your help
Christian