*/
    public boolean isUpdated() {
        return newInput != null;
    }

    /**
     * Checks if this item has been deleted.
     * @return true if deleted, false otherwise
     */
    public boolean isDeleted() {
        return isUpdated() && newInput.length() == 0;
    }

    @Override
    public int hashCode() {
        return java.util.Objects.hashCode(input);
    }

    @Override

    }

    /**
     * Checks if the item has been marked for deletion.
     *
     * @return true if the item is marked for deletion, false otherwise.
     */
    public boolean isDeleted() {
        return isUpdated() && StringUtil.isBlank(newInput);
    }

    @Override
    public int hashCode() {
        return Objects.hash(input, output);
    }

    @Override

    @Test
    public void test_isDeleted() {
        // Test isDeleted method
        StopwordsItem item = new StopwordsItem(1, "word");
        assertFalse(item.isDeleted());

        item.setNewInput("new");
        assertFalse(item.isDeleted());

        // Mark for deletion with empty string
        item.setNewInput("");
        assertTrue(item.isDeleted());

        item.setNewInput(null);

     * An item is considered deleted if it has updates pending and the new inputs array is empty.
     *
     * @return true if the item is marked for deletion
     */
    public boolean isDeleted() {
        return isUpdated() && newInputs.length == 0;
    }

    /**
     * Sorts both the current inputs and new inputs arrays in place.

        assertFalse(stemmerOverrideItem.isUpdated());
        assertFalse(stemmerOverrideItem.isDeleted());

        stemmerOverrideItem.setNewInput("bbb");
        stemmerOverrideItem.setNewOutput("b");
        assertTrue(stemmerOverrideItem.isUpdated());
        assertFalse(stemmerOverrideItem.isDeleted());

        stemmerOverrideItem.setNewInput("");
        stemmerOverrideItem.setNewOutput("");

        assertFalse(kuromojiItem.isUpdated());
        assertFalse(kuromojiItem.isDeleted());

        kuromojiItem.setNewToken("T1");
        kuromojiItem.setNewSegmentation("S1");
        kuromojiItem.setNewReading("R1");
        kuromojiItem.setNewPos("P1");
        assertTrue(kuromojiItem.isUpdated());
        assertFalse(kuromojiItem.isDeleted());

        kuromojiItem.setNewToken("");

        assertFalse(synonymItem.isUpdated());
        assertFalse(synonymItem.isDeleted());

        synonymItem.setNewInputs(new String[] { "1", "2" });
        synonymItem.setNewOutputs(new String[] { "3", "4" });
        assertTrue(synonymItem.isUpdated());
        assertFalse(synonymItem.isDeleted());

        synonymItem.setNewInputs(new String[0]);
        synonymItem.setNewOutputs(new String[0]);

        assertFalse(item.isDeleted());

        // Set newInputs to empty array and newOutput
        item.setNewInputs(new String[] {});
        item.setNewOutput("output");
        assertTrue(item.isDeleted());

        // Set newInputs to non-empty array - not deleted
        item.setNewInputs(new String[] { "something" });
        assertFalse(item.isDeleted());
    }

    @Test

                    throw new DictionaryException("Mapping file was updated: old=" + oldItem + " : new=" + item);
                }
                try {
                    if (!item.isDeleted()) {
                        // update
                        writer.write(item.toLineString());
                        writer.write(Constants.LINE_SEPARATOR);

                    throw new DictionaryException("Kuromoji file was updated: old=" + oldItem + " : new=" + item);
                }
                try {
                    if (!item.isDeleted()) {
                        // update
                        writer.write(item.toLineString());
                        writer.write(Constants.LINE_SEPARATOR);