Hi, You should use "java.lang.reflect.Field", instead of "Todo.Field". -- Quentin Sabah, CIFRE Ph.D. student Grenoble University INRIA-SARDES | STMicroelectronics/AST Montbonnot, France | Grenoble, France mailto:quentin.sabah at inria.fr | mailto:quentin.sabah at st.com phone: +33 476 61 52 42 | phone: +33 476 58 44 14