return null;
        }).when(smbTree).close();

        smbTree.close();

        verify(smbTree).close();
    }

    /**
     * Test for unwrap preserving type safety.
     * Verifies that unwrap maintains type safety at compile time.
     */
    @Test
    void testUnwrap_typeSafety() {
        CustomSmbTree customTree = mock(CustomSmbTree.class);

## Important Notes for AI Assistants

1. **Resource Management**: Always use try-with-resources with `CurlResponse`.

2. **Null Safety**: Constructors validate null arguments. Follow this pattern.

3. **Thread Safety**: `RequestProcessor` is single-use per request.

4. **Encoding**: Call `encoding()` before `param()` methods.

    protected static final String JAVABIN = "javabin";

    /** Constant for Kryo serializer type. */
    protected static final String KRYO = "kryo";

    /** ThreadLocal container for Kryo instances to ensure thread safety. */
    protected final ThreadLocal<Kryo> kryoThreadLocal;

    /**
     * Constructs a new DataSerializer.
     * <p>
     * Initializes the ThreadLocal Kryo instances with appropriate configuration.

- **Cross-Language Compatibility:**
Java serialization is inherently Java-centric and does not support cross-language scenarios well.

- **Type Safety:**
Java serialization does not enforce type safety as strictly as some alternatives, potentially leading to runtime errors.

## Decision

We do not use Java serialization.

            return entryIterator.hasNext();
          }

          @Override
          public K next() {
            Entry<K, V> entry = entryIterator.next(); // store local reference for thread-safety
            cacheEntry = entry;
            return entry.getKey();
          }
        };
      }

      @Override
      public int size() {
        return backingMap.size();
      }

                        java.lang.reflect.Modifier.isStatic(method.getModifiers()));
            }
        }
    }

    @Test
    public void test_generic_type_safety() {
        // Test generic type safety of getObject method
        // Since we're in test environment without request context, this will return null
        String stringResult = WebApiUtil.getObject("testString");

            final int flags = oldFlags | ServerMessageBlock2.SMB2_FLAGS_SIGNED;
            SMBUtil.writeInt4(flags, data, offset + 16);

            // Create new Mac instance for thread safety without blocking other operations
            Mac mac;
            try {
                mac = createMacInstance();
            } catch (GeneralSecurityException e) {

    Set<E> result = super.convertToHashFloodingResistantImplementation();
    this.predecessor = null;
    this.successor = null;
    return result;
  }

  /*
   * For discussion of the safety of the following methods for operating on predecessors and
   * successors, see the comments near the end of CompactHashMap, noting that the methods here call

    Set<E> result = super.convertToHashFloodingResistantImplementation();
    this.predecessor = null;
    this.successor = null;
    return result;
  }

  /*
   * For discussion of the safety of the following methods for operating on predecessors and
   * successors, see the comments near the end of CompactHashMap, noting that the methods here call

import org.codelibs.fess.unit.UnitFessTestCase;
import org.junit.jupiter.api.Test;

public class UserRoleLoginExceptionTest extends UnitFessTestCase {

    // Mock subclass of RootAction for testing generic type safety
    private static class TestAction extends RootAction {
        // Test subclass
    }

    // Another mock subclass for testing
    private static class AdminAction extends RootAction {