* - Resource usage monitoring
 * - Periodic cleanup of abandoned resources
 * - Detailed resource tracking and reporting
 */
public class ResourceManager {

    private static final Logger log = LoggerFactory.getLogger(ResourceManager.class);
    private static final ResourceManager INSTANCE = new ResourceManager();

    private final Map<String, ResourceHolder> activeResources = new ConcurrentHashMap<>();

import org.junit.jupiter.api.Timeout;

/**
 * Unit tests for ResourceManager
 */
public class ResourceManagerTest {

    private ResourceManager resourceManager;

    @BeforeEach
    void setUp() {
        resourceManager = ResourceManager.getInstance();
        // Configure with shorter intervals for testing
        resourceManager.configure(1000, 100, true, true);
    }

    /**