}

    // Test command string construction edge cases
    public void test_command_string_edge_cases() throws Exception {
        // Test with commands containing special characters
        final List<String> specialCommands = Arrays.asList("echo \"test with quotes\"", "echo 'test with single quotes'",
                "echo test with spaces", "echo test&with&ampersand", "echo test|with|pipe");

    }

    /**
     * Retrieves a single document matching the search condition.
     *
     * @param index     the index name
     * @param condition the search condition
     * @return an optional containing the document if found
     */
    public OptionalEntity<Map<String, Object>> getDocument(final String index, final SearchCondition<SearchRequestBuilder> condition) {

                }
                System.setProperty(e.getKey(), e.getValue());
            });
        }
    }

    /**
     * Updates the application configuration.
     *
     * @return A string containing the results of the update.
     */
    public String updateConfiguration() {
        final StringBuilder buf = new StringBuilder();
        updateConfigListenerMap.entrySet().stream().forEach(e -> {