code: // Licensed to the Software Freedom Conservancy (SFC) under one
  // or more contributor license agreements.  See the NOTICE file
  // distributed with this work for additional information
  // regarding copyright ownership.  The SFC licenses this file
  // to you under the Apache License, Version 2.0 (the
  // "License"); you may not use this file except in compliance
  // with the License.  You may obtain a copy of the License at
  //
  //   http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing,
  // software distributed under the License is distributed on an
  // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  // KIND, either express or implied.  See the License for the
  // specific language governing permissions and limitations
  // under the License.
  
  package org.openqa.selenium.logging;
  
  import java.util.Collection;
  import java.util.Comparator;
  import java.util.stream.Collectors;
  import java.util.stream.Stream;
  
  public class LogCombiner {
    private static final Comparator<LogEntry> LOG_ENTRY_TIMESTAMP_COMPARATOR =
        Comparator.comparingLong(LogEntry::getTimestamp);
  
    public static LogEntries combine(LogEntries... entries) {
  
      return new LogEntries(
          Stream.of(entries)
              .map(LogEntries::getAll)
              .flatMap(Collection::stream)
              .sorted(LOG_ENTRY_TIMESTAMP_COMPARATOR)
              .collect(Collectors.toList()));
    }
  }
  