}

  @Test
  public void hasCycle_twoCyclicEdges() {
    for (MutableGraph<Integer> graph : graphsToTest) {
      graph.putEdge(1, 2);
      graph.putEdge(2, 1); // no-op in undirected case
    }
    assertThat(hasCycle(directedGraph)).isTrue();
    assertThat(hasCycle(undirectedGraph)).isFalse();
  }

  @Test
  public void hasCycle_threeAcyclicEdges() {

4. Download JSON file

**Via API**:
```bash
# Export all configurations
curl -X GET "http://localhost:8080/api/admin/backup/export" \
  -u admin:admin \
  -o fess-config-backup.json
```

### Importing Configuration

**Via Admin UI**:
1. **System > Backup > Upload**
2. Select `fess*.json` file
3. Click **Import**

**Via API**:
```bash

            assertFalse(testBlock.isResolveInDfs());

            // The isResolveInDfs() implementation incorrectly uses getFlags() with FLAGS2 constant
            // Since FLAGS2_RESOLVE_PATHS_IN_DFS is 0x1000, when cast to byte it becomes 0
            // Therefore the method will always return false unless flags has all 0x00 bits set
            // This test verifies actual behavior
            testBlock.setFlags((byte) 0x00);

   *
   * <p>Note that you cannot always tell if an attempt to insert an element will succeed by
   * inspecting {@code remainingCapacity} because it may be the case that another thread is about to
   * insert or remove an element.
   */
  @CanIgnoreReturnValue
  @Override
  public int remainingCapacity() {
    Monitor monitor = this.monitor;
    monitor.enter();

        switch (variant) {
        case DEFAULT_WITH_PS: {
            JAASAuthenticator a = new JAASAuthenticator();
            // Provide a preset Subject so the getSubject() path uses the (serviceName, ps, this) constructor
            a.setSubject(new Subject());
            return a;
        }
        case WITH_CONFIG: {

            switch (LM_COMPATIBILITY) {
            case 0:
            case 1:
            case 2:
                macSigningKey = new byte[40];
                auth.getUserSessionKey(transport.server.encryptionKey, macSigningKey, 0);
                System.arraycopy(auth.getUnicodeHash(transport.server.encryptionKey), 0, macSigningKey, 16, 24);
                break;
            case 3:
            case 4:
            case 5:

            byte[] hash = md.digest(input);
            System.arraycopy(hash, 0, derived, 0, Math.min(length, hash.length));

            // If we need more bytes, hash again with counter
            int counter = 1;
            while (derived.length > hash.length * counter) {
                md.update(input);
                md.update((byte) counter);
                hash = md.digest();

            this.type = bufferStream.readInt();
            switch (this.type) {
            case KERB_CHECKSUM_HMAC_MD5:
                this.checksum = new byte[16];
                break;
            case HMAC_SHA1_96_AES128:
            case HMAC_SHA1_96_AES256:
                this.checksum = new byte[12];
                break;
            default:

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.hash;

import com.google.common.hash.BloomFilterStrategies.LockFreeBitArray;
import com.google.common.testing.AbstractPackageSanityTests;
import org.jspecify.annotations.NullUnmarked;

/**
 * Basic sanity tests for the entire package.
 *

        switch (this.ctlCode) {
        case Smb2IoctlRequest.FSCTL_DFS_GET_REFERRALS:
            return new DfsReferralResponseBuffer();
        case Smb2IoctlRequest.FSCTL_SRV_REQUEST_RESUME_KEY:
            return new SrvRequestResumeKeyResponse();
        case Smb2IoctlRequest.FSCTL_SRV_COPYCHUNK:
        case Smb2IoctlRequest.FSCTL_SRV_COPYCHUNK_WRITE: