registeredClasses.put( Boolean.class, new BooleanValueConverter() ); registeredClasses.put( Boolean.TYPE, new BooleanValueConverter() ); registeredClasses.put( Byte.class, new ByteValueConverter() ); registeredClasses.put( Byte.TYPE, new ByteValueConverter() ); registeredClasses.put( Character.class, new CharacterValueConverter() ); registeredClasses.put( Character.TYPE, new CharacterValueConverter() );