datatypes.dtd shows dubious errors

[fbricon]

I've opened my /Users/fbricon/.lsp4xml/cache/http/www.w3.org/2001/datatypes.dtd file (downloaded after opening some maven schema) and was greeted by 19 errors:

There are actually 3 different error messages.

• The entity "p" was referenced, but not declared.
• The entity "annotation" was referenced, but not declared.
• A '(' character or an element type is required in the declaration of element type "simpleType".

[BikeAtor]

Same here with datatypes.dtd and XMLSchema.dtd from w3.org Eclipse: Version: 2023-12 (4.30.0) Build id: 20231201-2043

[angelozerr]

We need to find time to investigate this problem.

[BikeAtor]

Here is a minimal Maven-Project xml-dtd.tar.gz

[immaldes]

@fbricon have you figured out the errors ? what to do to resolve them ?