try {
            urlFilter.processUrl(null);
            // Should handle null gracefully or throw appropriate exception
        } catch (NullPointerException e) {
            // Expected behavior for null input
            assertTrue(true);
        }
    }

    /**
     * Test processUrl with empty URL
     */
    public void test_processUrl_emptyUrl() {

        } catch (IndexOutOfBoundsException e) {
            // Expected
        }

        try {
            ruleManager.addRule(5, rule2);
            fail("Should throw IndexOutOfBoundsException for index > size");
        } catch (IndexOutOfBoundsException e) {
            // Expected
        }
    }

    /**
     * Test adding null rule at index
     */

        String field = "content";

        try {
            List<String> results = converter.convert(text, field, "en");
            assertNotNull(results);
        } catch (Exception e) {
            // Expected behavior - null text might cause exception
            assertNotNull(e);
        }
    }

    @Test
    public void testConvertWithWhitespaceText() throws IOException {

 * This handler extends {@link URLStreamHandler} to provide a way to open connections to storage objects
 * using URLs with the "storage" protocol.
 *
 * <p>
 * The URL format is expected to be: {@code storage://bucketName/objectName}.
 * The bucket name and object name are extracted from the URL.
 * </p>
 *
 * <p>
 * The handler relies on environment variables for configuration:
 * </p>
 * <ul>

        factory.setComponentName(null);

        try {
            factory.create();
            fail("Should throw exception for null component name");
        } catch (Exception e) {
            // Expected behavior
            assertTrue(true);
        }
    }

    /**
     * Test creation with invalid component name
     */
    public void test_create_invalidComponentName() {

        SuggestItem item2 = new SuggestItem(text, readings, null, 0L, 0L, 2.5f, null, null, null, SuggestItem.Kind.QUERY);
        assertEquals(2.5f, item2.getUserBoost(), 0.001f); // Should keep the value
    }

    @Test(expected = IllegalArgumentException.class)
    public void testMergeDifferentIds() {
        // Test that merge throws exception for different IDs
        String[] text1 = { "item1" };
        String[][] readings1 = { { "read1" } };

        try {
            ruleWithoutContainer.register(0);
            fail("Should throw exception with null container");
        } catch (NullPointerException e) {
            // Expected
        }
    }

    /**
     * Test concurrent property access
     */
    public void test_concurrentPropertyAccess() throws Exception {
        final int threadCount = 10;