[BUG] Issue with parsing nested comments

[tomershay]

Sample query: SELECT /* outer /* inner */ still outer */ 1;

This should be a valid query that just returns 1, but parsing the comments doesn't seem to work and returns an error:
Encountered <K_OUTER> / "outer", at line 1, column 35, in lexical state DEFAULT ...

[manticore-projects]

Known issue, in fact I opened the same case 3 years ago.
Unfortunately, with raw JavaCC there is no good solution (known to me). Maybe a scanner/sanitizer before parsing makes sense.