import static org.junit.jupiter.api.Assertions.assertTrue;

/**
 * Tests {@code Notifier}.
 *
 */
class NotifierTest {

    @Test
    void testHashCodeNullSafe() {
        new Notifier().hashCode();
    }

    @Test
    void testEqualsNullSafe() {
        assertFalse(new Notifier().equals(null));

        new Notifier().equals(new Notifier());
    }

    @Test
    void testEqualsIdentity() {

              <exclude>org.apache.maven.model.ModelBase#setReports(java.lang.Object):METHOD_REMOVED</exclude>
              <exclude>org.apache.maven.model.Notifier#addConfiguration(java.lang.String,java.lang.String):METHOD_REMOVED</exclude>
              <exclude>org.apache.maven.model.Plugin#getGoals():METHOD_REMOVED</exclude>

         */
        public void setNotificationFuture(CompletableFuture<Void> future) {
            this.notificationFuture = future;
        }
    }

    /**
     * Create a new directory change notifier
     *
     * @param manager directory lease manager
     */
    public DirectoryChangeNotifier(DirectoryLeaseManager manager) {
        this.leaseManager = manager;

            public boolean isDirectory() { return fileInfo.isDirectory(); }
            // ... other attribute methods
        });
        
        return file;
    }
}
```

### 4.4 Directory Change Notifier
```java
package jcifs.internal.smb2.lease;

import jcifs.internal.smb2.ServerMessageBlock2;
import java.util.concurrent.ConcurrentHashMap;

public class DirectoryChangeNotifier {

        </field>
        <field>
          <name>notifiers</name>
          <version>4.0.0+</version>
          <description>Configuration for notifying developers/users when a build is unsuccessful,
            including user information and notification mode.</description>
          <association>
            <multiplicity>*</multiplicity>
            <type>Notifier</type>
          </association>
        </field>

    /**
     * Initiates shutdown of the job executor.
     * This method notifies the shutdown listener to perform cleanup operations.
     */
    public void shutdown() {
        shutdownListener.onShutdown();
    }

    /**
     * Adds a shutdown listener to be notified when the executor is shutting down.
     *
     * @param listener the shutdown listener to add
     */

            // When
            var field = Handler.class.getField("DEFAULT_HTTPS_PORT");

            // Then
            assertTrue(Modifier.isPublic(field.getModifiers()));
            assertTrue(Modifier.isStatic(field.getModifiers()));
            assertTrue(Modifier.isFinal(field.getModifiers()));
            assertEquals(int.class, field.getType());
        }
    }

    @Nested

            // When
            var field = Handler.class.getField("DEFAULT_HTTPS_PORT");

            // Then
            assertTrue(Modifier.isPublic(field.getModifiers()));
            assertTrue(Modifier.isStatic(field.getModifiers()));
            assertTrue(Modifier.isFinal(field.getModifiers()));
            assertEquals(int.class, field.getType());
        }
    }

    @Nested

     * @return true if static, false otherwise
     */
    public static boolean isStatic(final int modifier) {
        return Modifier.isStatic(modifier);
    }

    /**
     * Checks if the specified modifier is final.
     *
     * @param modifier
     *            the modifier to check
     * @return true if final, false otherwise
     */
    public static boolean isFinal(final int modifier) {

        for (Field field : fields) {
            int modifiers = field.getModifiers();
            assertTrue(Modifier.isPublic(modifiers), "Field " + field.getName() + " should be public");
            assertTrue(Modifier.isStatic(modifiers), "Field " + field.getName() + " should be static");
            assertTrue(Modifier.isFinal(modifiers), "Field " + field.getName() + " should be final");
        }
    }

    @Test