CommandExecutionException exception1 = new CommandExecutionException("Test");
        CommandExecutionException exception2 = new CommandExecutionException("Test");

        // Both instances should be of the same class
        assertEquals(exception1.getClass(), exception2.getClass());

        // Test serialization compatibility by checking class name

        TestFessSystemException exception = new TestFessSystemException(message, true, true);

        assertEquals(message, exception.getMessage());
        assertNull(exception.getCause());

        // Stack trace should be populated
        assertTrue(exception.getStackTrace().length > 0);
    }

    public void test_constructor_withNonWritableStackTrace() {
        // Test protected constructor with non-writable stack trace

    }

    public void test_register_with_null_scheduledJob() {
        try {
            jobHelper.register((ScheduledJob) null);
            fail("Should throw ScheduledJobException");
        } catch (ScheduledJobException e) {
            assertEquals("No job.", e.getMessage());
        } catch (Exception e) {

     */
    fun retry(): Plan?
  }

  /**
   * What to do once a plan has executed.
   *
   * If [nextPlan] is not-null, another attempt should be made by following it. If [throwable] is
   * non-null, it should be reported to the user should all further attempts fail.
   *
   * The two values are independent: results can contain both (recoverable error), neither

        assertThrows(SmbException.class, () -> tree.treeConnect(null, null));
        // After failure, state should be reset to disconnected
        assertEquals(0, tree.connectionState);
    }

    @Test
    void testSend() throws SmbException {
        SmbTree tree = new SmbTree(session, "testShare", "A:");

        assertEquals(0, enc.size(), "size() must be zero");
        assertEquals(0, written, "encode() must return zero for zero length");
        for (byte b : dst) {
            assertEquals((byte) 0x7A, b, "Destination should remain unchanged");
        }
    }

    @Test
    @DisplayName("encode() throws when destination too small")
    void encodeThrowsWhenDestinationTooSmall() {
        byte[] src = makeSeq(5);

        facetQueryView.init();

        Map<String, String> queryMap = facetQueryView.getQueryMap();

        // Should have original queries
        assertEquals("filetype:html", queryMap.get("label1"));
        assertEquals("field2:value2", queryMap.get("label2"));

        // Should add file type queries since there's a filetype query
        assertTrue(queryMap.size() > 2);

            // Verify output buffer length
            assertEquals(0x8000, SMBUtil.readInt4(buffer, 68));

            // Verify input buffer offset (should be 0 when no input buffer)
            assertEquals(0, SMBUtil.readInt2(buffer, 72));

            // Verify input buffer length (should be 0 when no input buffer)
            assertEquals(0, SMBUtil.readInt4(buffer, 76));

            // Verify additional information

        assertEquals(
            "char 0x" + Integer.toString(ch, 16) + " should not be escaped", input, escaped);
      }
    }

    // Test that 0xFFFE and 0xFFFF are replaced with 0xFFFD
    assertEscaping(xmlEscaper, "\uFFFD", '\uFFFE');
    assertEscaping(xmlEscaper, "\uFFFD", '\uFFFF');

    assertEquals(
        "0xFFFE is forbidden and should be replaced during escaping",
        "[\uFFFD]",

    void testIsTrustedDomain_ConnectionFails() throws SmbAuthException {
        // Scenario: Transport connection fails
        when(mockCredentials.getUserDomain()).thenReturn("authdomain.com");
        // When transport fails, it should return false
        assertFalse(dfsImpl.isTrustedDomain(mockContext, "anydomain.com"));
    }

    // Tests for getDc
    @Test
    void testGetDc_DfsDisabled() throws SmbAuthException {