* ensures that the properties are always up-to-date.
 *
 * <p>Key Features:
 * <ul>
 *   <li>Automatically reloads properties if the file is modified.</li>
 *   <li>Supports custom check intervals for file modification checks.</li>
 *   <li>Provides synchronized methods for loading and storing properties.</li>
 *   <li>Extends {@link Properties} and overrides its methods to work with dynamic properties.</li>
 * </ul>
 *
 * <p>Usage:
 * <pre>

        this.userProperties = userProperties;
        return this;
    }

    @Override
    public Properties getUserProperties() {
        if (userProperties == null) {
            userProperties = new Properties();
        }

        return userProperties;
    }

    @Override
    public Properties getExecutionProperties() {

    ProfileManager getGlobalProfileManager();

    Properties getUserProperties();

    Properties getExecutionProperties();

    ProjectBuilderConfiguration setGlobalProfileManager(ProfileManager globalProfileManager);

    ProjectBuilderConfiguration setLocalRepository(ArtifactRepository localRepository);

    ProjectBuilderConfiguration setUserProperties(Properties userProperties);

    /**
     * Initialize singleton context using custom properties
     *
     * This method can only be called once.
     *
     * @param props the properties to use for initialization
     * @throws CIFSException if the singleton context is already initialized or there is an error during initialization
     */
    public static synchronized final void init(final Properties props) throws CIFSException {
        if (INSTANCE != null) {

        }
    }

    /**
     * Gets the mail properties used for email processing.
     *
     * @return the mail properties
     */
    public Properties getMailProperties() {
        return mailProperties;
    }

    /**
     * Sets the mail properties used for email processing.
     *
     * @param mailProperties the mail properties to set
     */

import java.util.Properties;

import org.junit.jupiter.api.Test;

import jcifs.CIFSException;

/**
 * Unit tests for Multi-Channel configuration properties
 */
class MultiChannelConfigurationTest {

    @Test
    void testDefaultMultiChannelSettings() throws CIFSException {
        PropertyConfiguration config = new PropertyConfiguration(new Properties());

     * system properties collected so far, along with other information. This method should return altered
     * (contributions applied) user properties, not only the "new" or "added" properties!
     *
     * @param protoSession The proto session, never {@code null}.
     * @return The user properties with contributions.
     */

import java.io.OutputStream;
import java.io.Reader;
import java.io.Writer;
import java.net.URL;
import java.nio.charset.Charset;
import java.util.Properties;

import org.codelibs.core.exception.IORuntimeException;
import org.codelibs.core.net.URLUtil;

/**
 * Utility class for {@link Properties} operations.
 *
 * @author higa
 */
public abstract class PropertiesUtil {

    /**
     * Do not instantiate.
     */

        Path jcifsPropertiesPath = tempDir.resolve("jcifs.properties");
        Files.writeString(jcifsPropertiesPath, "jcifs.smb.client.nativeOs=FileOS");
        System.setProperty("jcifs.properties", jcifsPropertiesPath.toString());

        System.setProperty("jcifs.smb.client.nativeOs", "SystemOS");

        Properties customProps = new Properties();

    }

    /**
     * Returns a map of user-defined properties for the Maven execution.
     * These properties can be set using the -D command-line option.
     *
     * @return an unmodifiable map of user properties
     */
    @Nonnull
    Map<String, String> userProperties();

    /**
     * Returns a map of system properties for the Maven execution.