void.class);

    assertThrows(UnsupportedOperationException.class, () -> primitives.remove(boolean.class));
  }

  public void testAllWrapperTypes() {
    Set<Class<?>> wrappers = Primitives.allWrapperTypes();
    assertThat(wrappers)
        .containsExactly(
            Boolean.class,
            Byte.class,
            Character.class,
            Double.class,
            Float.class,
            Integer.class,

            void.class);

    assertThrows(UnsupportedOperationException.class, () -> primitives.remove(boolean.class));
  }

  public void testAllWrapperTypes() {
    Set<Class<?>> wrappers = Primitives.allWrapperTypes();
    assertThat(wrappers)
        .containsExactly(
            Boolean.class,
            Byte.class,
            Character.class,
            Double.class,
            Float.class,
            Integer.class,

 * the License.
 */

package com.google.common.hash;

import com.google.common.annotations.GwtIncompatible;
import java.nio.Buffer;

/**
 * Wrappers around {@link Buffer} methods that are covariantly overridden in Java 9+. See
 * https://github.com/google/guava/issues/3990
 */
@GwtIncompatible
@ElementTypesAreNonnullByDefault
final class Java8Compatibility {

 * the License.
 */

package com.google.common.io;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import java.nio.Buffer;

/**
 * Wrappers around {@link Buffer} methods that are covariantly overridden in Java 9+. See
 * https://github.com/google/guava/issues/3990
 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault

 * the License.
 */

package com.google.common.hash;

import com.google.common.annotations.GwtIncompatible;
import java.nio.Buffer;

/**
 * Wrappers around {@link Buffer} methods that are covariantly overridden in Java 9+. See
 * https://github.com/google/guava/issues/3990
 */
@GwtIncompatible
@ElementTypesAreNonnullByDefault
final class Java8Compatibility {

 * the License.
 */

package com.google.common.base;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import java.nio.Buffer;

/**
 * Wrappers around {@link Buffer} methods that are covariantly overridden in Java 9+. See
 * https://github.com/google/guava/issues/3990
 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault

 * the License.
 */

package com.google.common.io;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import java.nio.Buffer;

/**
 * Wrappers around {@link Buffer} methods that are covariantly overridden in Java 9+. See
 * https://github.com/google/guava/issues/3990
 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault

//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

// Package lock - implements filesystem locking wrappers around an
// open file descriptor.
package lock

import (
	"errors"
	"os"
	"sync"
)

// ErrAlreadyLocked is returned if the underlying fd is already locked.

 * {@code equals} would break symmetry, as the forwarding object might consider itself equal to the
 * object being tested, but the reverse could not be true. This behavior is consistent with the
 * JDK's collection wrappers, such as {@link java.util.Collections#unmodifiableCollection}. Use an
 * interface-specific subclass of {@code ForwardingObject}, such as {@link ForwardingList}, to
 * preserve equality behavior, or override {@code equals} directly.

  - Artistic-1.0
  - Artistic-2.0
  - Apache-1.1
  - BSD-1-Clause
  - BSD-2-Clause
  - BSD-3-Clause
  - 0BSD
  - FTL
  - LPL-1.02
  - MS-PL
  - MIT
  - NCSA
  - OpenSSL
  - PHP-3.0
  - TCP-wrappers
  - W3C
  - Xnet
  - Zlib

reciprocal_licenses:
  - CC0-1.0
  - APSL-2.0
  - CDDL-1.0
  - CDDL-1.1
  - CPL-1.0
  - EPL-1.0
  - IPL-1.0
  - MPL-1.0
  - MPL-1.1
  - MPL-2.0