27.0, depends on
    listenablefuture-9999.0-empty-to-avoid-conflict-with-guava. The 9999.0-...
    version number is enough for some build systems (notably, Gradle) to select
    that empty artifact over the "real" listenablefuture-1.0 -- avoiding a
    conflict with the copy of ListenableFuture in guava itself. If users are
    using an older version of Guava or a build system other than Gradle, they

Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License.  You may obtain a copy of the License at

  http://www.apache.org/licenses/LICENSE-2.0

        // Test constructor with null message
        SearchEngineClientException exception = new SearchEngineClientException(null);

        assertNotNull(exception);
        assertNull(exception.getMessage());
        assertNull(exception.getCause());
    }

    @Test
    public void test_constructor_withNullMessageAndCause() {
        // Test constructor with null message and null cause

        }
    }

    /**
     * Test encode with empty byte array
     *
     * @throws Exception
     */
    public void testEncode_EmptyArray() throws Exception {
        final String result = Base64Util.encode(new byte[0]);
        assertEquals("Empty array should return empty string", "", result);
    }

    /**
     * Test encode with null returns empty string
     *
     * @throws Exception
     */

 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *

            assertNotNull(e);
        }
    }

    @Test
    public void test_evaluate_withDifferentWindowSizes() {
        // Test with different window sizes
        final String testModelName = "test_model";

        // Test with small window size
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            @Override
            public String getLtrModelName() {

        // Test equals with null input - should not throw, uses null-safe comparison
        StopwordsItem item1 = new StopwordsItem(1, null);
        StopwordsItem item2 = new StopwordsItem(2, null);
        StopwordsItem item3 = new StopwordsItem(1, "word");

        // Two items with null input should be equal
        assertTrue(item1.equals(item2));

    @Test
    @DisplayName("Test initProtocolVersions with strings")
    void testInitProtocolVersionsWithStrings() {
        config.initProtocolVersions("SMB202", "SMB311");

        assertEquals(DialectVersion.SMB202, config.getMinimumVersion());
        assertEquals(DialectVersion.SMB311, config.getMaximumVersion());
    }

    @Test
    @DisplayName("Test initProtocolVersions with null/empty strings")

        assertEquals(cause, exception.getCause());
        assertFalse(exception.aborted());
    }

    @Test
    public void test_getUrl_withNullUrl() {
        // Test with null URL
        String url = null;
        String message = "Error with null URL";
        Exception cause = new RuntimeException("Error cause");

        DataStoreCrawlingException exception = new DataStoreCrawlingException(url, message, cause);

    public void test_getInputValue() {
        // Test getInputValue method with non-null input
        ProtwordsItem item1 = new ProtwordsItem(1, "word");
        assertEquals("word", item1.getInputValue());

        // Test with empty string
        ProtwordsItem item2 = new ProtwordsItem(2, "");
        assertEquals("", item2.getInputValue());

        // Test with null input - should return empty string