// Set new output
        item.setNewOutput("newOutput");
        assertEquals("newOutput", item.getNewOutput());
    }

    public void test_setNewOutput_withNewline() {
        String[] inputs = { "input" };
        CharMappingItem item = new CharMappingItem(1L, inputs, "output");

        // Test newline replacement in setNewOutput
        item.setNewOutput("line1\nline2\nline3");

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

        stemmerOverrideItem.setNewInput("");
        stemmerOverrideItem.setNewOutput("");
        assertTrue(stemmerOverrideItem.isUpdated());
        assertTrue(stemmerOverrideItem.isDeleted());
    }

    public synchronized void delete(final StemmerOverrideItem item) {
        final StemmerOverrideItem stemmerOverrideItem = item;
        stemmerOverrideItem.setNewInput(StringUtil.EMPTY);
        stemmerOverrideItem.setNewOutput(StringUtil.EMPTY);
        try (StemmerOverrideUpdater updater = new StemmerOverrideUpdater(item)) {
            reload(updater);
        }
    }

    /**

     */
    @Override
    public synchronized void delete(final CharMappingItem item) {
        final CharMappingItem mappingItem = item;
        mappingItem.setNewInputs(StringUtil.EMPTY_STRINGS);
        mappingItem.setNewOutput(StringUtil.EMPTY);
        try (MappingUpdater updater = new MappingUpdater(item)) {
            reload(updater);
        }
    }

    /**
     * Reloads the character mapping items from the dictionary file.

     */
    public String getNewOutput() {
        return newOutput;
    }

    /**
     * Sets the new output stem.
     *
     * @param newOutputs The new output stem.
     */
    public void setNewOutput(final String newOutputs) {
        newOutput = newOutputs;
    }

    /**
     * Gets the original input word.
     *
     * @return The original input word.
     */
    public String getInput() {

        updateItem1.setNewInputs(new String[] { "m", "n" });
        updateItem1.setNewOutput("o");

        // Create another update for the same item
        CharMappingItem updateItem2 = new CharMappingItem(1L, new String[] { "x", "y" }, "z");
        updateItem2.setNewInputs(new String[] { "p", "q" });
        updateItem2.setNewOutput("r");

        // First update should succeed
        charMappingFile.update(updateItem1);

     * Newline characters in the output are automatically replaced with spaces.
     *
     * @param newOutput the new output sequence to set
     */
    public void setNewOutput(final String newOutput) {
        this.newOutput = newOutput == null ? null : newOutput.replace("\n", " ");
    }

    /**
     * Returns the array of input character sequences that are mapped to the output.

            validateMappingString(action, newInputs, "inputs", hook);
            entity.setNewInputs(newInputs);
            final String newOutput = form.output;
            entity.setNewOutput(newOutput);
            return entity;
        });
    }

    // ===================================================================================

            final VaErrorHook hook) {
        return getEntity(form).map(entity -> {
            entity.setNewInput(form.input);
            entity.setNewOutput(form.output);
            return entity;
        });
    }

    // ===================================================================================