assertEquals("smb://dfs-server/dfs-share" + l.getUNCPath().replace('\\', '/'), l.getDfsPath());
        assertEquals("dfs-share", l.getShare());

        // Path consumed negative -> coerced to 0
        when(dr.getPathConsumed()).thenReturn(-1);
        String unc2 = l.handleDFSReferral(dr, null);
        assertTrue(unc2.contains("dfs/path") || unc2.contains("dfs\\path"));
    }

    @Test

provided that You also comply with the requirements of this License for
the Covered Software. If the Larger Work is a combination of Covered
Software with a work governed by one or more Secondary Licenses, and the
Covered Software is not Incompatible With Secondary Licenses, this
License permits You to additionally distribute such Covered Software
under the terms of such Secondary License(s), so that the recipient of

**Key Test Areas**:
- Resource closure on successful extraction (MS Office extractors)
- Resource closure on failed extraction
- Improved error messages with context
- Input validation using `validateInputStream()`

**Covered Extractors**:
- MsWordExtractor
- MsExcelExtractor
- MsPowerPointExtractor
- TextExtractor

**Test Count**: 8 tests

**Key Scenarios**:
- ✅ Successful extraction closes resources properly

 * versions of the {@link FluentFuture#catching(Class, com.google.common.base.Function)
 * FluentFuture.catching} family of methods. Those versions have slightly different signatures.
 */
@GwtCompatible
@J2ktIncompatible // Super-sourced
abstract class GwtFluentFutureCatchingSpecialization<V extends @Nullable Object>
    extends AbstractFuture<V> {
  /*
   * This server copy of the class is empty. The corresponding GWT copy contains alternative

 * java.util.concurrent.Executor) Futures.catching} family of methods. Those versions have slightly
 * different signatures.
 */
@GwtCompatible
@J2ktIncompatible // Super-sourced
abstract class GwtFuturesCatchingSpecialization {
  /*
   * This server copy of the class is empty. The corresponding GWT copy contains alternative

     * Share flag indicating that exclusive opens are restricted on this share.
     */
    public static final int SMB2_SHAREFLAG_RESTRICT_EXCLUSIVE_OPENS = 0x100;
    /**
     * Share flag indicating that shared delete is forced for this share.
     */
    public static final int SMB2_SHAREFLAG_FORCE_SHARED_DELETE = 0x200;
    /**
     * Share flag indicating that namespace caching is allowed on this share.
     */

 * java.util.concurrent.Executor) Futures.catching} family of methods. Those versions have slightly
 * different signatures.
 */
@GwtCompatible
@J2ktIncompatible // Super-sourced
abstract class GwtFuturesCatchingSpecialization {
  /*
   * This server copy of the class is empty. The corresponding GWT copy contains alternative

import com.google.common.annotations.J2ktIncompatible;
import java.math.BigDecimal;
import java.math.RoundingMode;

/**
 * A class for arithmetic on {@link BigDecimal} that is not covered by its built-in methods.
 *
 * @author Louis Wasserman
 * @since 30.0
 */
@J2ktIncompatible
@GwtIncompatible
public class BigDecimalMath {
  private BigDecimalMath() {}

  /**

        // Arrange - mock cause to verify no interactions are needed to construct
        Throwable cause = Mockito.mock(Throwable.class);
        String message = "forced downgrade detected";

        // Act
        SMBProtocolDowngradeException ex = new SMBProtocolDowngradeException(message, cause);

        // Assert - fields preserved
        assertSame(cause, ex.getCause());

    }

    @Test
    void acceptPropagatesException() {
        SmbFile dir = Mockito.mock(SmbFile.class);
        SmbFilenameFilter filter = (d, n) -> {
            throw new SmbException("forced exception");
        };
        Exception e = assertThrows(Exception.class, () -> filter.accept(dir, "any"));
        assertTrue(e instanceof SmbException);
    }