I have an HTML/JSP file that uses the sequence for a capital letter 'A' with a ring over it (Å). In the editor, this sequence is marked with a warning "Cannot resolve symbol & Aring;" [space added to prevent it from being interpreted by the browser]

The symbol is used as the standard symbol for the measurement unit "Angstroms" (10 e-10 meters) - a commonly used measurement in astronomy.

Environment: Mac OS 10.3.9

Issue was resolved