Java generator fatal error message

[Arthur Schwarz]

The following program:

----- code -----
%language "Java"
%start start
%token TOKEN
%%
start : start '+' TOKEN
      | TOKEN
      ;
%%

----- end code -----

yields the following result:
x.y: fatal error: "lalr1.java": %defines does not make sense in Java

There is no %defines in the code.