Comments at the beginning of a program result in errors but they should not

[sergutsan]

The following code

/*
  Write a program that asks a number from the user, then says whether the number is prime or not. Remember that
  a number that is divisible by any number apart from 1 and itself is prime. You can use the modulo operator (if
  a % b is zero, then a is divisible by b).
*/
println ("Enter an integer");
int b = readInt();

is correct, but it produces an error:

JavaDecaf Error: Stand-alone method not started properly
file:/tmp/error1.jdc

If the comments are removed, the code compiles without problems.