Thanks, this is a real bug.
I have put together a fix. In DefaultCommandLineCompiler.java, instead
of this code:
      for (SourceCode source : job.inputs)
{
        GssParser parser = new
GssParser(source);
        parseAndPrint(result,
parser);
      }
It should be this:
    GssParser parser = new GssParser(job.inputs);
    parseAndPrint(result, parser);
I'm working on getting this checked into the codebase, but if you need
this immediately, you can always make this change locally for now.