KERML11 — MULTILINE_NOTE Element Ambiguous Syntax

Clause 8.2.2.2 of the KerML specification defines the syntax for a
MULTILINE_NOTE element as follows:

MULTILINE_NOTE =
    '//*' COMMENT_TEXT '*/'

The KerML specification does not contain any examples of multi-line note
elements, however.

The SysML specification does provide a single example of a multi-line
note element in the second code block of its clause 8.4.8.1, near the
top of page 410:

    //* Effective conjugated features:
    out feature a subsets Base::things;
    in feature b subsets Base::things;
    inout feature c subsets Base::things;
    feature d subsets Items::Item;
    *// 

In contrast to the Concrete Syntax grammar given in the KerML
specification, which denotes '*/' (single slash) as the comment closer,
the example in the SysML specification uses '*//' (double slash) as the
comment closer.

It is thus ambiguous which of the two presented variants for closing
MULTILINE_NOTE elements is the correct one.