* limitations under the License.
 */

package com.google.common.io;

import static com.google.common.base.StandardSystemProperty.OS_NAME;
import static com.google.common.io.RecursiveDeleteOption.ALLOW_INSECURE;
import static com.google.common.jimfs.Feature.SECURE_DIRECTORY_STREAM;
import static com.google.common.jimfs.Feature.SYMBOLIC_LINKS;
import static com.google.common.truth.Truth.assertThat;

import static java.nio.file.attribute.AclEntryFlag.DIRECTORY_INHERIT;
import static java.nio.file.attribute.AclEntryFlag.FILE_INHERIT;
import static java.nio.file.attribute.AclEntryType.ALLOW;
import static java.nio.file.attribute.PosixFilePermissions.asFileAttribute;
import static java.util.Objects.requireNonNull;

import com.google.common.annotations.GwtIncompatible;

 * href="https://github.com/google/guava/wiki/GraphsExplained#definitions">definitions of
 * terms</a>):
 *
 * <ul>
 *   <li>directed graphs
 *   <li>undirected graphs
 *   <li>graphs that do/don't allow self-loops
 *   <li>graphs whose nodes/edges are insertion-ordered, sorted, or unordered
 *   <li>graphs whose edges have associated values
 * </ul>
 *

         * local artifact resolution. In the second case, the result needs to precisely obey the path information of the
         * repository's layout to allow pointing at artifacts within the repository. Unfortunately,
         * DefaultRepositoryLayout does not correctly describe the layout of a local repository which unlike a remote

    return oldCount;
  }

  private static int getAndSet(@CheckForNull Count i, int count) {
    if (i == null) {
      return 0;
    }

    return i.getAndSet(count);
  }

  // Don't allow default serialization.
  @GwtIncompatible // java.io.ObjectStreamException
  @J2ktIncompatible
  private void readObjectNoData() throws ObjectStreamException {
    throw new InvalidObjectException("Stream data required");

 * Collections#frequency}) can cause major performance problems.
 *
 * @author Gregory Kick
 * @since 10.0
 */
@GwtCompatible(emulated = true)
@SuppressWarnings("rawtypes") // allow ungenerified Comparable types
@ElementTypesAreNonnullByDefault
public abstract class ContiguousSet<C extends Comparable> extends ImmutableSortedSet<C> {
  /**

  /**
   * Opens a new buffered {@link InputStream} for reading from this source. The returned stream is
   * not required to be a {@link BufferedInputStream} in order to allow implementations to simply
   * delegate to {@link #openStream()} when the stream returned by that method does not benefit from
   * additional buffering (for example, a {@code ByteArrayInputStream}). This method returns a new,

  // security reasons anyway. Therefore, the FRQ.close() method provides a way to stop the thread
  // explicitly. This test checks that calling that method does allow an app's ClassLoader to be
  // gc'd even if there is a still a FinalizableReferenceQueue in a static field. (Setting the field
  // to null would also work, but only if there are no references to the FRQ anywhere else.)

    int h;
    if (hc == null) {
      threadHashCode.set(hc = new int[1]); // Initialize randomly
      int r = rng.nextInt(); // Avoid zero to allow xorShift rehash
      h = hc[0] = (r == 0) ? 1 : r;
    } else h = hc[0];
    boolean collide = false; // True if last slot nonempty
    for (; ; ) {
      Cell[] as;
      Cell a;
      int n;

         * unprefixed expressions.
         * @param possiblePrefixes The possible prefixes.
         * @param root The root of the graph.
         * @param allowUnprefixedExpressions if we allow undefined expressions or not.
         */
        public PrefixedObjectValueSource(
                List<String> possiblePrefixes, Object root, boolean allowUnprefixedExpressions) {