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);
        }
    }

    protected void reload(final StemmerOverrideUpdater 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);
        }
    }

    protected void reload(final MappingUpdater updater) {

    }

    public void setNewInput(final String newInput) {
        this.newInput = newInput;
    }

    public String getNewOutput() {
        return newOutput;
    }

    public void setNewOutput(final String newOutputs) {
        newOutput = newOutputs;
    }

    public String getInput() {
        return input;
    }

    public String getOutput() {
        return output;
    }

    }

    public void setNewInputs(final String[] newInputs) {
        this.newInputs = newInputs;
    }

    public String getNewOutput() {
        return newOutput;
    }

    public void setNewOutput(final String newOutput) {
        this.newOutput = newOutput == null ? null : newOutput.replace("\n", " ");
    }

    public String[] getInputs() {
        return inputs;
    }

            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;
        });
    }

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