Hello, I have created a test for #fromJson: message. MJTestFromJson >> testFromJsonWithAddress | person address | person := MJTestPerson fromJson: '{"Name":"Tomas","Address":{"PostalCode":"19800","City":"Prague"}}'. self assert: person name equals: 'Tomas'. address := person address. self assert: address isNil not. self assert: address postalCode equals: '19800'. self assert: address city equals: 'Prague'. But the test fails because it cannot find PostalCode in MJTestPerson instace (should be probably in MJTestAddress). Is it a problem of my #fromJson: usage or wrong implementation of JSON deserialization? Thanks for any information. Tomas Kukol _______________________________________________ seaside mailing list seaside(a)lists.squeakfoundation.org http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside