package reader;

public abstract class Production {
   int sel;
   int fId;
	public abstract String toString();
 
	  }


@@ -113,8 +113,110 @@
  %0A%09  %7D%0A%0A
+public abstract class Production %7B%0A    int sel;%0A    int fId;%0A    public abstract String toString();%0A%7D%0A

Fix the Production class (was empty ?!?)