question: expecting illegalargumentexception with null date . concode_field_sep PlaceHolder placeHolder concode_field_sep void testLocalTimeZone concode_elem_sep void testGmtTimeZone concode_elem_sep void toTimeAgoUtc_boston concode_elem_sep void nullDate concode_elem_sep Date convertToUtc concode_elem_sep void toTimeAgoUtc_boston_dst concode_elem_sep void toTimeAgoUtc_california
target: void function ( ) { DateUtil . toTimeAgoUtc ( null ) ; }