throw new ThemeException("Theme name is empty: " + artifact);
        }
        return themeName;
    }

    /**
     * Recursively deletes a directory and all its contents.
     * Does not throw exceptions, only logs warnings if deletion fails.
     *
     * @param dir the directory to delete
     */
    protected void closeQuietly(final Path dir) {
        if (Files.notExists(dir)) {

        assertTrue(UniAddress.isAllDigits(""), "isAllDigits should return true for empty string (no non-digits)");
    }

    /* ---------------------------------------------------------------------
     * 4. Exceptions from static methods that don't resolve without stubbing
     * --------------------------------------------------------------------- */
    @Test
    void getAllByNameRejectsNullOrEmptyHostname() {

        Exception cause = new RuntimeException("Root cause");

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

        assertEquals(url, exception.getUrl());
        assertEquals(message, exception.getMessage());
        assertEquals(cause, exception.getCause());
        assertFalse(exception.aborted());
    }

    public void test_constructor_withUrlMessageExceptionAndAbortTrue() {

        assertSame(session, result);
        verify(transport).getSmbSession(eq(ctx), eq(host), eq(domain));
    }

    // SMB2 detection: true/false and exception path
    @Test
    @DisplayName("isSMB2 returns true/false and can throw")
    void isSMB2_variants() throws Exception {
        when(transport.isSMB2()).thenReturn(true, false);
        assertTrue(transport.isSMB2());
        assertFalse(transport.isSMB2());

    private int alt;

    /**
     * This is really just for {@link jcifs.netbios.UniAddress}. It does
     * not throw an {@link java.net.UnknownHostException} because this
     * is queried frequently and exceptions would be rather costly to
     * throw on a regular basis here.
     *
     * @param host the hostname to resolve
     * @param tc the CIFS context
     * @return resolved name, null if not found
     */

        final Exception cause = new RuntimeException("Underlying error");

        // Execute
        final InvalidQueryException exception = new InvalidQueryException(null, message, cause);

        // Verify
        assertNotNull(exception);
        assertEquals(message, exception.getMessage());
        assertEquals(cause, exception.getCause());
        assertNull(exception.getMessageCode());
    }

    }
  }
  if (exception != null) {
    throw exception
  }
}

internal fun <E> MutableList<E>.addIfAbsent(element: E) {
  if (!contains(element)) add(element)
}

internal fun Exception.withSuppressed(suppressed: List<Exception>): Throwable =
  apply {
    for (e in suppressed) addSuppressed(e)
  }

internal inline fun <T> Iterable<T>.filterList(predicate: T.() -> Boolean): List<T> {

                }, StringIndexOutOfBoundsException.class));
    }

    @ParameterizedTest(name = "{0}")
    @MethodSource("invalidBuffers")
    @DisplayName("Invalid buffers throw appropriate exceptions")
    void invalidInputsThrow(String name, Object bufferSupplierOrBytes, Class<? extends Throwable> expected) {
        // Arrange
        byte[] buf;
        if (bufferSupplierOrBytes instanceof byte[]) {

          try {
            nextToRun.call(listener);
          } catch (Exception e) { // sneaky checked exception
            // Log it and keep going.
            logger
                .get()
                .log(
                    Level.SEVERE,
                    "Exception while executing callback: " + listener + " " + nextLabel,
                    e);
          }
        }

    }

    /**
     * Test for close() method throwing exception.
     * Verifies behavior when close throws an exception.
     */
    @Test
    void testClose_throwsException() {
        doThrow(new RuntimeException("Failed to close")).when(smbTree).close();

        assertThrows(RuntimeException.class, () -> smbTree.close(), "Should propagate exception when close fails");
    }

    /**