import static org.junit.Assert.assertThrows;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.base.Stopwatch;
import com.google.common.collect.Range;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;

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

package com.google.common.collect;

import static com.google.common.base.Preconditions.checkNotNull;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.primitives.Primitives;

import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.atomic.AtomicInteger;

/**
 * Abstract base class for RDMA connections.
 *
 * Manages connection state, credit flow control, and provides
 * abstract methods for RDMA operations that must be implemented
 * by specific provider implementations.
 */

package jcifs.smb;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.CIFSException;
import jcifs.CloseableIterator;
import jcifs.ResourceNameFilter;
import jcifs.SmbResource;

/**
 * Base class for directory enumeration iterators.
 *
 * This abstract class provides common functionality for iterating
 * over directory entries in SMB file shares.
 *
 * @author mbechler
 */

				}
			} else if serverDebugLog {
				console.Debugln("error refreshing", m.id, time.Now().Format(time.RFC3339))
			}
		}
	}
}

// baseDirFromPrefix will return the base directory given an object path.
// For example an object with name prefix/folder/object.ext will return `prefix/folder/`.
func baseDirFromPrefix(prefix string) string {
	b := path.Dir(prefix)

@REM ----------------------------------------------------------------------------
@REM Apache Maven Wrapper startup batch script, version 3.3.4
@REM
@REM Optional ENV vars
@REM   MVNW_REPOURL - repo url base for downloading maven distribution
@REM   MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
@REM   MVNW_VERBOSE - true: enable verbose log; others: silence the output

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

package com.google.common.collect;

import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.collect.ReflectionFreeAssertThrows.assertThrows;
import static com.google.common.truth.Truth.assertThat;

import com.google.common.annotations.GwtCompatible;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.base.Ascii;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import com.google.common.testing.EqualsTester;
import com.google.common.testing.NullPointerTester;

 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkElementIndex;
import static com.google.common.base.Preconditions.checkNotNull;
import static java.lang.System.arraycopy;
import static java.util.Collections.emptyMap;

One particular example is when a [method returns `null` if and only if its argument is `null`](https://github.com/gradle/gradle/blob/674b8430b024f03cae24f1e4dd6dbaa78b557dae/platforms/core-runtime/base-services/src/main/java/org/gradle/util/internal/TextUtil.java#L163).
Prefer either:
  * Provide only non-nullable version and move the `null` check to the call site (if the number of nullable callsites is low).