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.remote;
  
  import static org.openqa.selenium.remote.CapabilityType.ACCEPT_INSECURE_CERTS;
  import static org.openqa.selenium.remote.CapabilityType.BROWSER_NAME;
  import static org.openqa.selenium.remote.CapabilityType.BROWSER_VERSION;
  import static org.openqa.selenium.remote.CapabilityType.PLATFORM_NAME;
  
  import java.util.Map;
  import org.openqa.selenium.Capabilities;
  import org.openqa.selenium.MutableCapabilities;
  import org.openqa.selenium.Platform;
  
  public class DesiredCapabilities extends MutableCapabilities {
  
    public DesiredCapabilities(String browser, String version, Platform platform) {
      setCapability(BROWSER_NAME, browser);
      setCapability(BROWSER_VERSION, version);
      setCapability(PLATFORM_NAME, platform);
    }
  
    public DesiredCapabilities() {
      // no-arg constructor
    }
  
    public DesiredCapabilities(Map<String, ?> rawMap) {
      if (rawMap == null) {
        return;
      }
  
      rawMap.forEach(this::setCapability);
    }
  
    public DesiredCapabilities(Capabilities other) {
      merge(other);
    }
  
    public DesiredCapabilities(Capabilities... others) {
      for (Capabilities caps : others) {
        merge(caps);
      }
    }
  
    public void setBrowserName(String browserName) {
      setCapability(BROWSER_NAME, browserName);
    }
  
    public void setVersion(String version) {
      setCapability(BROWSER_VERSION, version);
    }
  
    public void setPlatform(Platform platform) {
      setCapability(PLATFORM_NAME, platform);
    }
  
    public boolean acceptInsecureCerts() {
      if (getCapability(ACCEPT_INSECURE_CERTS) != null) {
        Object raw = getCapability(ACCEPT_INSECURE_CERTS);
        if (raw instanceof String) {
          return Boolean.parseBoolean((String) raw);
        } else if (raw instanceof Boolean) {
          return (Boolean) raw;
        }
      }
      return true;
    }
  
    public void setAcceptInsecureCerts(boolean acceptInsecureCerts) {
      setCapability(ACCEPT_INSECURE_CERTS, acceptInsecureCerts);
    }
  
    /**
     * Merges the extra capabilities provided into this DesiredCapabilities instance. If capabilities
     * with the same name exist in this instance, they will be overridden by the values from the
     * extraCapabilities object.
     *
     * @param extraCapabilities Additional capabilities to be added.
     * @return DesiredCapabilities after the merge
     */
    @Override
    public DesiredCapabilities merge(Capabilities extraCapabilities) {
      if (extraCapabilities != null) {
        extraCapabilities.asMap().forEach(this::setCapability);
      }
      return this;
    }
  }
  