}

    @Test
    public void test_defensiveCopy_newInputs() {
        // Test that getNewInputs() returns defensive copy
        SynonymItem item = new SynonymItem(1, new String[] { "a" }, new String[] { "x" });
        item.setNewInputs(new String[] { "p", "q", "r" });

        String[] returnedInputs = item.getNewInputs();

        // Modifying returned array should not affect original

        // Initially null for non-zero id
        assertNull(item.getNewInputs());

        // Set new inputs
        String[] newInputs = { "new1", "new2" };
        item.setNewInputs(newInputs);
        assertNotNull(item.getNewInputs());
        assertEquals(2, item.getNewInputs().length);
        assertEquals("new1", item.getNewInputs()[0]);
        assertEquals("new2", item.getNewInputs()[1]);
    }

    @Test

    }

    /**
     * Gets the new input words.
     * Returns a defensive copy to prevent external modification.
     *
     * @return The new input words (defensive copy).
     */
    public String[] getNewInputs() {
        return newInputs == null ? null : newInputs.clone();
    }

    /**
     * Sets the new input words.
     *
     * @param newInputs The new input words.
     */

     * Returns a defensive copy to prevent external modification.
     *
     * @return array of new input sequences (defensive copy), or null if no updates are pending
     */
    public String[] getNewInputs() {
        return newInputs == null ? null : newInputs.clone();
    }

    /**
     * Sets the array of new input character sequences for update operations.
     *

                        // update
                        writer.write(item.toLineString());
                        writer.write(Constants.LINE_SEPARATOR);
                        return new CharMappingItem(item.getId(), item.getNewInputs(), item.getNewOutput());
                    }
                    return null;
                } finally {
                    item.setNewInputs(null);
                    item.setNewOutput(null);