Methods with Variable Number Of Arguments not supported in version jel-0.9.11

hi,
     I am using JDK 1.5 new feature to define methods taking any number of
     arguments  Method i had defined is :>
	public long sum(long... args) {
      	long sum = 0 ;
      	for(long arg : args) {
    	      	sum = sum + arg;
      	}
      	return sum;
      }

      using in expression as :>
		Evaluator.compile("sum(1,2)",lib);

      Getting following error :>
Exception in thread "main" gnu.jel.CompilationException: Function "sum" exists
but parameters "sum(byte,byte)" can not be accepted by it.


     I had tried with version jel-0.9.11. Please Help me i need this feature.

     Thanks & Regards
     Naresh Yadav