code: public boolean isSpecialField() {
      return this.typeName.equals(JBBPFieldFloat.TYPE_NAME) || this.typeName.equals(JBBPFieldDouble.TYPE_NAME) || this.typeName.equals(JBBPFieldString.TYPE_NAME) || this.typeName.equals("val");
    }
docs: Check that the type is a special one ('floatj', 'doublej', 'stringj' or 'value').
  
  @return true if the type is a special one
  @see JBBPFieldFloat#TYPE_NAME
  @see JBBPFieldDouble#TYPE_NAME
  @see JBBPFieldString#TYPE_NAME
  @since 1.4.0