public String getHandleStateDirectory() {
    return getProperty(HANDLE_STATE_DIR, 
        System.getProperty("user.home") + "/.jcifs/handles");
}
```

## 8. Testing Strategy

### 8.1 Unit Tests
```java
package jcifs.tests.smb3;

import org.junit.Test;
import static org.junit.Assert.*;

public class PersistentHandleTest {
    
    @Test
    public void testHandleGuidGeneration() {

import jcifs.SmbResource;
import jcifs.SmbTransportPool;
import jcifs.config.BaseConfiguration;

/**
 * Comprehensive test suite for BaseContext class.
 * Tests CIFS context implementation and component integration.
 */
@DisplayName("BaseContext Tests")
class BaseContextTest extends BaseTest {

    @Mock
    private Configuration mockConfig;

    private BaseContext context;

    @BeforeEach

import com.google.common.cache.TestingRemovalListeners.CountingRemovalListener;
import java.util.List;
import java.util.Set;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests relating to cache eviction: what does and doesn't count toward maximumSize, what happens
 * when maximumSize is reached, etc.
 *
 * @author mike nonemacher
 */
@NullUnmarked

     */
    @Override
    public synchronized void mark(final int readlimit) {
        inputStream.mark(readlimit);
    }

    /**
     * Tests if this input stream supports the mark and reset methods.
     *
     * @return true if this stream instance supports the mark and reset methods; false otherwise
     */
    @Override
    public boolean markSupported() {

/*
 * © 2025 CodeLibs, Inc.
 */
package jcifs.tests.persistent;

import static org.junit.jupiter.api.Assertions.assertArrayEquals;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNull;

import org.apache.maven.api.model.Activation;
import org.apache.maven.api.model.ActivationOS;
import org.apache.maven.api.model.Profile;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

/**
 * Tests {@link OperatingSystemProfileActivator}.
 *
 */
@Deprecated
class OperatingSystemProfileActivatorTest extends AbstractProfileActivatorTest<OperatingSystemProfileActivator> {

    @Override
    @BeforeEach

import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;

import jcifs.CIFSContext;
import jcifs.Configuration;
import jcifs.internal.witness.WitnessRegistration.WitnessRegistrationState;

/**
 * Unit tests for WitnessClient class using mocks.
 */
@ExtendWith(MockitoExtension.class)
public class WitnessClientTest {

    @Mock
    private CIFSContext mockContext;

    @Mock
    private Configuration mockConfig;

import java.util.concurrent.locks.ReentrantLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for Striped.
 *
 * @author Dimitris Andreou
 */
@NullUnmarked
public class StripedTest extends TestCase {
  private static List<Striped<?>> strongImplementations() {
    return ImmutableList.of(

import java.net.URL;
import java.net.URLClassLoader;
import java.util.HashSet;
import java.util.Set;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for {@link Enums}.
 *
 * @author Steve McKay
 */
@GwtIncompatible
@J2ktIncompatible
@NullUnmarked
public class EnumsTest extends TestCase {

  private enum TestEnum {
    CHEETO,
    HONDA,

import java.util.concurrent.locks.ReentrantLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for Striped.
 *
 * @author Dimitris Andreou
 */
@NullUnmarked
public class StripedTest extends TestCase {
  private static List<Striped<?>> strongImplementations() {
    return ImmutableList.of(