/guava/guava/src/com/google/common/io/Files.java
} return Optional.absent( ) ;
return Optional.absent ( ) ; }
} @Override public Optional<Long> sizeIfKnown() { if (file.isFile()) { return Optional.of(file.length()); } else { <extra_id_0> } @Override public long size() throws IOException { if (!file.isFile()) { throw new FileNotFoundException(file.toString()); }