@Test void nullFile() throws IOException { assertThrows(InvalidDatasetException.class, () -> { compositeBalanceFileReader.read(null); }); }
@Override public Stream<AccountBalance> read(File file) { return getReader(file).read(file); }
CompositeBalanceFileReader implements BalanceFileReader { @Override public Stream<AccountBalance> read(File file) { return getReader(file).read(file); } }
CompositeBalanceFileReader implements BalanceFileReader { @Override public Stream<AccountBalance> read(File file) { return getReader(file).read(file); }  }
CompositeBalanceFileReader implements BalanceFileReader { @Override public Stream<AccountBalance> read(File file) { return getReader(file).read(file); }  @Override Stream<AccountBalance> read(File file); }
CompositeBalanceFileReader implements BalanceFileReader { @Override public Stream<AccountBalance> read(File file) { return getReader(file).read(file); }  @Override Stream<AccountBalance> read(File file);  }