本文整理了Java中java.util.HashSet.clone()方法的一些代码示例，展示了HashSet.clone()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。HashSet.clone()方法的具体详情如下：
包路径：java.util.HashSet
类名称：HashSet
方法名：clone

HashSet.clone介绍

[英]Returns a new HashSet with the same elements and size as this HashSet.
[中]返回与此哈希集具有相同元素和大小的新哈希集。

代码示例

代码示例来源：origin: org.apache.ant/ant

/**
 * @return A copy of the CheckedNamespace.
 */
private synchronized Set<String> getCheckedNamespace() {
  @SuppressWarnings("unchecked")
  final Set<String> result = (Set<String>) checkedNamespaces.clone();
  return result;
}

代码示例来源：origin: org.freemarker/freemarker

Collection getSuspendedEnvironments() {
  return (Collection) suspendedEnvironments.clone();
}

代码示例来源：origin: apache/zookeeper

@SuppressWarnings("unchecked")
public Set<String> getEphemerals(long sessionId) {
  HashSet<String> retv = ephemerals.get(sessionId);
  if (retv == null) {
    return new HashSet<String>();
  }
  Set<String> cloned = null;
  synchronized (retv) {
    cloned = (HashSet<String>) retv.clone();
  }
  return cloned;
}

代码示例来源：origin: org.apache.zookeeper/zookeeper

@SuppressWarnings("unchecked")
public HashSet<String> getEphemerals(long sessionId) {
  HashSet<String> retv = ephemerals.get(sessionId);
  if (retv == null) {
    return new HashSet<String>();
  }
  HashSet<String> cloned = null;
  synchronized (retv) {
    cloned = (HashSet<String>) retv.clone();
  }
  return cloned;
}

代码示例来源：origin: org.apache.zookeeper/zookeeper

@SuppressWarnings("unchecked")
public HashSet<String> getEphemerals(long sessionId) {
  HashSet<String> retv = ephemerals.get(sessionId);
  if (retv == null) {
    return new HashSet<String>();
  }
  HashSet<String> cloned = null;
  synchronized(retv) {
    cloned =  (HashSet<String>) retv.clone();
  }
  return cloned;
}

代码示例来源：origin: stanfordnlp/CoreNLP

private static <T> boolean equalSets(Set<T> set1, Set<T> set2) {
 boolean isEqual = true;
 if (set1.size() != set2.size()) {
  System.out.println("sizes different: " + set1.size() + " vs. " + set2.size());
  isEqual = false;
 }
 Set<T> newSet1 = (Set<T>) ((HashSet<T>) set1).clone();
 newSet1.removeAll(set2);
 if (newSet1.size() > 0) {
  isEqual = false;
  System.out.println("set1 left with: " + newSet1);
 }
 Set<T> newSet2 = (Set<T>) ((HashSet<T>) set2).clone();
 newSet2.removeAll(set1);
 if (newSet2.size() > 0) {
  isEqual = false;
  System.out.println("set2 left with: " + newSet2);
 }
 return isEqual;
}

代码示例来源：origin: apache/hive

@Override
public void copyToNewInstance(Object newInstance) throws UDFArgumentException {
 super.copyToNewInstance(newInstance); // Asserts the class invariant. (Same types.)
 GenericUDFInFile that = (GenericUDFInFile)newInstance;
 if (that != this) {
  that.set = (this.set == null ? null : (HashSet<String>)this.set.clone());
  that.strObjectInspector = this.strObjectInspector;
  that.fileObjectInspector = this.fileObjectInspector;
 }
}

代码示例来源：origin: robovm/robovm

/**
 * Returns a new {@code AttributedIterator} with the same source string,
 * begin, end, and current index as this attributed iterator.
 *
 * @return a shallow copy of this attributed iterator.
 * @see java.lang.Cloneable
 */
@Override
@SuppressWarnings("unchecked")
public Object clone() {
  try {
    AttributedIterator clone = (AttributedIterator) super.clone();
    if (attributesAllowed != null) {
      clone.attributesAllowed = (HashSet<Attribute>) attributesAllowed
          .clone();
    }
    return clone;
  } catch (CloneNotSupportedException e) {
    throw new AssertionError(e);
  }
}

代码示例来源：origin: pinterest/secor

public void deleteTopicPartitionGroup(TopicPartitionGroup topicPartitioGroup) throws IOException {
  HashSet<LogFilePath> paths = mFiles.get(topicPartitioGroup);
  if (paths == null) {
    return;
  }
  HashSet<LogFilePath> clonedPaths = (HashSet<LogFilePath>) paths.clone();
  for (LogFilePath path : clonedPaths) {
    deletePath(path);
  }
}

代码示例来源：origin: apache/drill

@Override
public void copyToNewInstance(Object newInstance) throws UDFArgumentException {
 super.copyToNewInstance(newInstance); // Asserts the class invariant. (Same types.)
 GenericUDFInFile that = (GenericUDFInFile)newInstance;
 if (that != this) {
  that.set = (this.set == null ? null : (HashSet<String>)this.set.clone());
  that.strObjectInspector = this.strObjectInspector;
  that.fileObjectInspector = this.fileObjectInspector;
 }
}

代码示例来源：origin: Sable/soot

CriticalSection(CriticalSection tn) {
 super(tn);
 this.IDNum = tn.IDNum;
 this.nestLevel = tn.nestLevel;
 this.origLock = tn.origLock;
 this.read = new CodeBlockRWSet();
 this.read.union(tn.read);
 this.write = new CodeBlockRWSet();
 this.write.union(tn.write);
 this.invokes = (HashSet<Unit>) tn.invokes.clone();
 this.units = (HashSet<Unit>) tn.units.clone();
 this.unitToRWSet = (HashMap<Unit, CodeBlockRWSet>) tn.unitToRWSet.clone();
 this.unitToUses = (HashMap<Unit, List>) tn.unitToUses.clone();
 this.wholeMethod = tn.wholeMethod;
 this.method = tn.method;
 this.setNumber = tn.setNumber;
 this.group = tn.group;
 this.edges = (HashSet<CriticalSectionDataDependency>) tn.edges.clone();
 this.waits = (HashSet<Unit>) tn.waits.clone();
 this.notifys = (HashSet<Unit>) tn.notifys.clone();
 this.transitiveTargets
   = (HashSet<MethodOrMethodContext>) (tn.transitiveTargets == null ? null : tn.transitiveTargets.clone());
 this.lockObject = tn.lockObject;
 this.lockObjectArrayIndex = tn.lockObjectArrayIndex;
 this.lockset = tn.lockset;
}

代码示例来源：origin: org.apache.zookeeper/zookeeper

/**
 * clear all the connections in the selector
 *
 */
@Override
@SuppressWarnings("unchecked")
synchronized public void closeAll() {
  selector.wakeup();
  HashSet<NIOServerCnxn> cnxns;
  synchronized (this.cnxns) {
    cnxns = (HashSet<NIOServerCnxn>)this.cnxns.clone();
  }
  // got to clear all the connections that we have in the selector
  for (NIOServerCnxn cnxn: cnxns) {
    try {
      // don't hold this.cnxns lock as deadlock may occur
      cnxn.close();
    } catch (Exception e) {
      LOG.warn("Ignoring exception closing cnxn sessionid 0x"
           + Long.toHexString(cnxn.sessionId), e);
    }
  }
}

代码示例来源：origin: org.netbeans.api/org-openide-util

/** Notify all waiters that this task has finished.
* @see #run
*/
protected final void notifyFinished() {
  Iterator it;
  synchronized (this) {
    finished = true;
    RequestProcessor.logger().log(Level.FINE, "notifyFinished: {0}", this); // NOI18N
    notifyAll();
    // fire the listeners
    if (list == null) {
      return;
    }
    it = ((HashSet) list.clone()).iterator();
  }
  while (it.hasNext()) {
    TaskListener l = (TaskListener) it.next();
    l.taskFinished(this);
  }
}

代码示例来源：origin: org.apache.zookeeper/zookeeper

@SuppressWarnings("unchecked")
  @Override
  public void commandRun() {
    if (!isZKServerRunning()) {
      pw.println(ZK_NOT_SERVING);
    } else {
      // clone should be faster than iteration
      // ie give up the cnxns lock faster
      HashSet<NIOServerCnxn> cnxns;
      synchronized (factory.cnxns) {
        cnxns = (HashSet<NIOServerCnxn>) factory.cnxns.clone();
      }
      for (NIOServerCnxn c : cnxns) {
        c.dumpConnectionInfo(pw, false);
        pw.println();
      }
      pw.println();
    }
  }
}

代码示例来源：origin: opentripplanner/OpenTripPlanner

@SuppressWarnings("unchecked")
@Override
public RoutingRequest clone() {
  try {
    RoutingRequest clone = (RoutingRequest) super.clone();
    clone.bannedRoutes = bannedRoutes.clone();
    clone.bannedTrips = (HashMap<FeedScopedId, BannedStopSet>) bannedTrips.clone();
    clone.bannedStops = bannedStops.clone();
    clone.bannedStopsHard = bannedStopsHard.clone();
    clone.whiteListedAgencies = (HashSet<String>) whiteListedAgencies.clone();
    clone.whiteListedRoutes = whiteListedRoutes.clone();
    clone.preferredAgencies = (HashSet<String>) preferredAgencies.clone();
    clone.preferredRoutes = preferredRoutes.clone();
    if (this.bikeWalkingOptions != this)
      clone.bikeWalkingOptions = this.bikeWalkingOptions.clone();
    else
      clone.bikeWalkingOptions = clone;
    return clone;
  } catch (CloneNotSupportedException e) {
    /* this will never happen since our super is the cloneable object */
    throw new RuntimeException(e);
  }
}

代码示例来源：origin: org.apache.zookeeper/zookeeper

synchronized(factory.cnxns){
  cnxnset = (HashSet<NIOServerCnxn>)factory
  .cnxns.clone();

代码示例来源：origin: h2oai/h2o-2

HashSet<H2ONode> nodes = (HashSet<H2ONode>)H2O.STATIC_H2OS.clone();
nodes.addAll(Paxos.PROPOSED.values());
bb.mark();

代码示例来源：origin: opentripplanner/OpenTripPlanner

/**
 * Safely add a vertex to this area. This creates edges to all other vertices unless those edges would cross one of the original edges.
 */
public void addVertex(IntersectionVertex newVertex, Graph graph) {
  GeometryFactory geometryFactory = GeometryUtils.getGeometryFactory();
  if (edges.size() == 0) {
    throw new RuntimeException("Can't add a vertex to an empty area");
  }
  @SuppressWarnings("unchecked")
  HashSet<IntersectionVertex> verticesCopy = (HashSet<IntersectionVertex>) vertices.clone();
  VERTEX: for (IntersectionVertex v : verticesCopy) {
    LineString newGeometry = geometryFactory.createLineString(new Coordinate[] {
        newVertex.getCoordinate(), v.getCoordinate() });
    // ensure that new edge does not leave the bounds of the original area, or
    // fall into any holes
    if (!originalEdges.union(originalEdges.getBoundary()).contains(newGeometry)) {
      continue VERTEX;
    }
    // check to see if this splits multiple NamedAreas. This code is rather similar to
    // code in OSMGBI, but the data structures are different
    createSegments(newVertex, v, areas, graph);
  }
  vertices.add(newVertex);
}

代码示例来源：origin: jamesagnew/hapi-fhir

@SuppressWarnings("unchecked")
@Override
public IParser setDontStripVersionsFromReferencesAtPaths(Collection<String> thePaths) {
  if (thePaths == null) {
    myDontStripVersionsFromReferencesAtPaths = Collections.emptySet();
  } else if (thePaths instanceof HashSet) {
    myDontStripVersionsFromReferencesAtPaths = (Set<String>) ((HashSet<String>) thePaths).clone();
  } else {
    myDontStripVersionsFromReferencesAtPaths = new HashSet<>(thePaths);
  }
  return this;
}

代码示例来源：origin: org.dom4j/dom4j

/**
 * A clone of the Set of elements that can have their close-tags omitted. By
 * default it should be "AREA", "BASE", "BR", "COL", "HR", "IMG", "INPUT",
 * "LINK", "META", "P", "PARAM"
 * 
 * @return A clone of the Set.
 */
public Set<String> getOmitElementCloseSet() {
  return (Set<String>) (internalGetOmitElementCloseSet().clone());
}