question: method to get exception details concode_field_sep Logger LOGGER concode_field_sep void init concode_elem_sep void compare concode_elem_sep int validateInput concode_elem_sep void main
target: String function ( Throwable arg0 ) { return ( arg0 . getCause ( ) != null ) ? arg0 . getCause ( ) . getMessage ( ) : arg0 . getMessage ( ) ; }