java.io.FilterReader { public static final String DEFAULT_START_DELIM = ${; public static final String DEFAULT_END_DELIM = }; public static final String DEFAULT_ESCAPE_SEQ = \; private static final char CARRIAGE_RETURN_CHAR = 13; private static final char NEWLINE_CHAR = 10; private final java.io.PushbackReader pushbackReader; private final java.util.Map context; private final String startDelim; private final String endDelim; private final String escapeSeq; private final int minExpressionSize; private final...

        List<T> newList = null;
        for (int i = 0; i < list.size(); i++) {
            T oldT = list.get(i);
            T newT = modifer.apply(oldT);
            if (newT != oldT) {
                if (newList == null) {
                    newList = new ArrayList<>(list);
                }
                newList.set(i, newT);
            }
        }
        return newList;

        FileSource source = new FileSource(txtFile);

        try (InputStream is = source.getInputStream();
                Scanner scanner = new Scanner(is)) {

            assertEquals("Hello World!", scanner.nextLine());
        }
    }

    @Test
    void testGetLocation() {
        File txtFile = new File("target/test-classes/source.txt");
        FileSource source = new FileSource(txtFile);

        List<T> newList = list;
        for (int i = 0; i < newList.size(); i++) {
            T oldT = newList.get(i);
            T newT = mapper.apply(oldT);
            if (newT != oldT) {
                if (newList == list) {
                    newList = new ArrayList<>(list);
                }
                newList.set(i, newT);
            }
        }
        return newList;