}

    /**
     * Encodes a similar document hash using GZIP compression and Base64 encoding.
     * This reduces storage space for hash values while maintaining uniqueness.
     *
     * @param hash the hash string to encode
     * @return the encoded hash string with prefix, or the original hash if encoding fails
     */
    public String encodeSimilarDocHash(final String hash) {

     1. Build a Gradle distribution with a fixed timestamp and hash it, but never use this distribution.
     2. Build a Gradle distribution with this hash as a version + fixed timestamp -> dogfood-first
     3. Build a Gradle distribution using dogfood-first with this hash as a version + fixed timestamp different from the one above -> dogfood-second

        // Same inputs and output should have same hash code
        assertEquals(item1.hashCode(), item2.hashCode());

        // Different inputs should have different hash code
        assertNotSame(item1.hashCode(), item3.hashCode());

        // Same inputs but different output should have different hash code
        assertNotSame(item1.hashCode(), item4.hashCode());
    }

    @Test

        int logoutHashCode = SsoResponseType.LOGOUT.hashCode();

        // Hash code should be consistent for the same object
        assertEquals(metadataHashCode, SsoResponseType.METADATA.hashCode());
        assertEquals(logoutHashCode, SsoResponseType.LOGOUT.hashCode());

        // Different enum constants should have different hash codes (usually)
        assertNotSame(metadataHashCode, logoutHashCode);
    }

        try {
            final MessageDigest md = MessageDigest.getInstance("SHA-256");
            final byte[] hash = md.digest(input.getBytes(StandardCharsets.UTF_8));
            final StringBuilder sb = new StringBuilder();
            for (final byte b : hash) {
                sb.append(String.format("%02x", b));
            }
            return sb.toString();

        assertTrue(result1.startsWith("FessUserTimeZoneProcessProvider:{"));
        assertTrue(result2.startsWith("FessUserTimeZoneProcessProvider:{"));

        // But different hash codes
        assertFalse(result1.equals(result2));
    }

    // Test static field initialization
    @Test
    public void test_centralTimeZone_initialization() {

        PrunedTag tag2 = new PrunedTag("div");
        tag2.setId("test");
        tag2.setCss("highlight");

        // Equal objects must have equal hash codes
        assertEquals(tag1.hashCode(), tag2.hashCode());

        // Hash code should be consistent
        int hash1 = tag1.hashCode();
        int hash2 = tag1.hashCode();
        assertEquals(hash1, hash2);
    }

    @Test

        assertEquals(des, provider.providePrimaryInvertibleCryptographer());
        assertEquals(oneWayCryptographer, provider.providePrimaryOneWayCryptographer());
    }

    // Test with different hash algorithms
    @Test
    public void test_withSha512Cryptographer() {
        // Test with SHA512
        OneWayCryptographer sha512 = OneWayCryptographer.createSha512Cryptographer();

        assertNotSame(item1.hashCode(), item4.hashCode());
    }

    @Test
    public void test_hashCode_withNullInput() {
        // Test hashCode with null input - should not throw, returns consistent hash for null
        StopwordsItem item1 = new StopwordsItem(1, null);
        StopwordsItem item2 = new StopwordsItem(2, null);

        // Should not throw
        int hash1 = item1.hashCode();

        assertEquals(item1.hashCode(), item1.hashCode());
    }

    @Test
    public void test_hashCode_withNullInput() {
        // Test hashCode with null input - should not throw, returns consistent hash for null
        ProtwordsItem item1 = new ProtwordsItem(1, null);
        ProtwordsItem item2 = new ProtwordsItem(2, null);

        // Should not throw
        int hash1 = item1.hashCode();