code: public StringIdentifierGenerator[] getIdentifierGenerators() {
          int len = identifierGenerators.length;
          StringIdentifierGenerator[] out = 
              new StringIdentifierGenerator[len];
          System.arraycopy(identifierGenerators, 0, out, 0, len);
          return out;
      }
docs: Returns a (shallow) copy of the array of identifier generators
  concatenated by this generator.
  
  @return the identifier generators