Logger function ( ) { return null ; }
note : jdk7 + new feature concode_field_sep PlaceHolder placeHolder concode_field_sep Connection getConnection concode_elem_sep Connection getConnection concode_elem_sep void setLogWriter concode_elem_sep void setLoginTimeout concode_elem_sep boolean isWrapperFor concode_elem_sep int getLoginTimeout concode_elem_sep PrintWriter getLogWriter concode_elem_sep T unwrap