checkDependencies(licenses, notices, sources, shaFiles);

        licenses.forEach((item, exists) -> failIfAnyMissing(item, exists, "license"));

        notices.forEach((item, exists) -> failIfAnyMissing(item, exists, "notice"));

        sources.forEach((item, exists) -> failIfAnyMissing(item, exists, "sources"));

        if (shaFiles.isEmpty() == false) {

# Sécurité avancée { #advanced-security }

## Fonctionnalités supplémentaires { #additional-features }

Il existe des fonctionnalités supplémentaires pour gérer la sécurité en plus de celles couvertes dans le [Tutoriel - Guide utilisateur : Sécurité](../../tutorial/security/index.md).

/// tip | Astuce

Les sections suivantes **ne sont pas nécessairement « advanced »**.

    /**
     * Checks whether a previous page exists in the pagination.
     *
     * @return true if a previous page exists, false otherwise
     */
    public boolean isExistPrePage() {
        return existPrePage;
    }

    /**
     * Sets the flag indicating whether a previous page exists.
     *
     * @param existPrePage true if a previous page exists, false otherwise
     */

    }

    /**
     * Checks if a previous page exists.
     *
     * @return true if a previous page exists, false otherwise
     */
    public boolean isExistPrePage() {
        return existPrePage;
    }

    /**
     * Sets whether a previous page exists.
     *
     * @param existPrePage true if a previous page exists, false otherwise
     */

    }

    /**
     * Returns true if a previous page exists.
     *
     * @return True if a previous page exists.
     */
    public boolean isExistPrePage() {
        return existPrePage;
    }

    /**
     * Sets whether a previous page exists.
     *
     * @param existPrePage True if a previous page exists.
     */
    public void setExistPrePage(final boolean existPrePage) {

    public void test_get_nullProperty() {
        // Test getting non-existent property
        try {
            fessConfig.get("non.existent.property");
            fail("Should throw exception for non-existent property");
        } catch (ConfigPropertyNotFoundException e) {
            // Expected exception
            assertTrue(e.getMessage().contains("non.existent.property"));
        }
    }

    }

    /**
     * Checks if there is a previous page.
     * @return true if previous page exists, false otherwise
     */
    public boolean isExistPrePage() {
        return existPrePage;
    }

    /**
     * Sets whether a previous page exists.
     * @param existPrePage true if previous page exists
     */
    public void setExistPrePage(final boolean existPrePage) {

    }

    /**
     * Checks if a previous page exists.
     *
     * @return True if a previous page exists, false otherwise
     */
    public boolean isExistPrePage() {
        return existPrePage;
    }

    /**
     * Sets whether a previous page exists.
     *
     * @param existPrePage True if a previous page exists
     */
    public void setExistPrePage(final boolean existPrePage) {

    Path temp = createTempFile();
    assertTrue(Files.exists(temp));
    Files.delete(temp);
    assertFalse(Files.exists(temp));

    MoreFiles.touch(temp);
    assertTrue(Files.exists(temp));
    MoreFiles.touch(temp);
    assertTrue(Files.exists(temp));
  }

  public void testTouchTime() throws IOException {
    Path temp = createTempFile();
    assertTrue(Files.exists(temp));

        // Test operations on empty service
        assertEquals(0, mockService.getRegistrationCount());
        assertFalse(mockService.hasRegistration("non-existent"));
        assertFalse(mockService.unregisterWitness("non-existent"));
        assertFalse(mockService.processHeartbeat("non-existent", 1));

        // Test registration with null/empty values
        String regId1 = mockService.registerWitness(null, "192.168.1.100", 1);