Description Tim Ellison 2006-06-07 06:25:55 EDT

Build 3.2RC4

When compiling an enum type with the Eclipse compiler for Java, the code for valueOf(String) apparently looks like this:

public static Type valueOf(String s)
{
   Type atype[];
   Type type1;
   for(int i = (atype = ENUM$VALUES).length; --i >= 0;)
      if(s.equals((type1 = atype[i]).name()))
         return type1;

   throw new IllegalArgumentException(s);
}

Assume the actual argument for 's' is null.

If the ENUM$VALUES is not empty the message s.equals(...) causes a NullPointerException; however, if the array is empty then the code falls through to explicitly throwing an IllegalArgumentException.

I would expect the behavior for a null argument to consistently throw a NPE for empty and non-empty enum types.