.add("ping:  pong  ") // Value whitespace is trimmed.
        .add("kit:kat") // Space after colon is not required.
        .build()
    assertThat(headers.values("foo")).containsExactly("bar", "baz", "bak")
    assertThat(headers.values("key")).containsExactly("value")
    assertThat(headers.values("ping")).containsExactly("pong")
    assertThat(headers.values("kit")).containsExactly("kat")
  }

        // for performance, check digits instead of relying later on catching NumberFormatException
        if (!isDigits(s)) {
            return null;
        }

        try {
            long longValue = Long.parseLong(s);
            if (longValue > Integer.MAX_VALUE) {
                return null;
            }
            return (int) longValue;
        } catch (NumberFormatException e) {

        assertEquals("FF", Hexdump.toHexString(255, 2));
        assertEquals("1234", Hexdump.toHexString(0x1234, 4));
    }

    @Test
    @DisplayName("Should convert long to hex string with padding")
    void testLongToHexString() {
        // Test various long values
        assertEquals("0000000000000000", Hexdump.toHexString(0L, 16));
        assertEquals("00000000000000FF", Hexdump.toHexString(255L, 16));

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

    private static OptionalEntity<RelatedContent> getEntity(final CreateForm form, final String username, final long currentTime) {
        switch (form.crudMode) {
        case CrudMode.CREATE:
            return OptionalEntity.of(new RelatedContent()).map(entity -> {
                entity.setCreatedBy(username);

        // Verify that exception is serializable
        assertTrue(exception instanceof java.io.Serializable);
    }

    public void test_longMessage() {
        // Setup - test with a very long message
        final StringBuilder longMessageBuilder = new StringBuilder();
        for (int i = 0; i < 1000; i++) {
            longMessageBuilder.append("Query segment ").append(i).append("; ");
        }

        int securityMode;
        int security;
        boolean encryptedPasswords;
        boolean signaturesEnabled;
        boolean signaturesRequired;
        int maxNumberVcs;
        int maxRawSize;
        long serverTime;
        int serverTimeZone;
        int encryptionKeyLength;
        byte[] encryptionKey;
        byte[] guid;
    }

    InetAddress localAddr;
    int localPort;
    UniAddress address;

    /** Session ID for secure key management */
    private String sessionId = null;
    /** Time-to-live for cached authentication in milliseconds */
    private long authenticationTTL = 3600000L; // 1 hour default
    /** Timestamp when the authentication was created */
    private long authenticationTimestamp = System.currentTimeMillis();
    /** Flag to track if this authenticator has been closed */
    private volatile boolean closed = false;

        }
    }

    // Test implementation of FessUser interface
    private static class TestFessUser implements FessUser {
        private static final long serialVersionUID = 1L;
        private final String name;
        private final String[] roleNames;
        private final String[] groupNames;
        private final String[] permissions;

      "path": {
        "type": "keyword"
      },
      "generator": {
        "type": "keyword"
      },
      "target": {
        "type": "keyword"
      },
      "createdTime": {
        "type": "long"
      },
      "createdBy": {
        "type": "keyword"
      }
    }

        assertTrue(toStringResult.contains(message));
    }

    public void test_longMessage() {
        // Test with very long message
        StringBuilder longMessage = new StringBuilder();
        for (int i = 0; i < 1000; i++) {
            longMessage.append("Long SSO error message part ").append(i).append(" ");
        }
        String message = longMessage.toString();