[antlr-interest] How can I modify the text of certain tokens in a CommonTokenStream?

[Matthew McDole]

So, I should attempt to set the tokens text in the IDENTIFIER
definition in java.g?

I tried something like this:

IDENTIFIER
    :   IdentifierStart IdentifierPart*
    {
        $setText("V");
    }
    ;

Which gave me: Java.g:1813:5: attribute is not a token, parameter, or
return value: setText

Is IDENTIFIER not a token?

What am I doing wrong in this case?