Selenium webdriver 当我使用带有ChromeDriver的代理时WebDriverException

当我将代理与ChromeDriver一起使用时，会出现类强制转换异常。

DesiredCapabilities capabilities = DesiredCapabilities.chrome();
        capabilities.setCapability(CapabilityType.ForSeleniumServer.ENSURING_CLEAN_SESSION, true);
        capabilities.setCapability(CapabilityType.UNEXPECTED_ALERT_BEHAVIOUR, UnexpectedAlertBehaviour.ACCEPT);
LoggingPreferences logPrefs = new LoggingPreferences();
logPrefs.enable(LogType.BROWSER, Level.ALL);
capabilities.setCapability(CapabilityType.LOGGING_PREFS, logPrefs);
if (!Context.getProxy().isEmpty()) {
    Proxy proxy = new Proxy();
    proxy.setHttpProxy(Context.getProxy());
    capabilities.setCapability(CapabilityType.PROXY, proxy);
}
System.setProperty(Driver.CHROME.getDriverName(), pathWebdriver);
return new ChromeDriver(capabilities);

如果Context.getProxy（）.isEmpty（）=true，则I Web驱动程序正常，但如果设置代理，则出现以下错误：

org.openqa.selenium.WebDriverException: Unable to convert: Capabilities [{ensureCleanSession=true, proxy=Proxy(manual, http=renn.proxy.corp.xxxx:8080), loggingPrefs=org.openqa.selenium.logging.LoggingPreferences@5df041, browserName=chrome, version=, platform=ANY, unexpectedAlertBehaviour=accept}]
    at org.openqa.selenium.remote.BeanToJsonConverter.convert(BeanToJsonConverter.java:69)
...
...
Caused by: org.openqa.selenium.WebDriverException: Unable to convert: Capabilities [{ensureCleanSession=true, proxy=Proxy(manual, http=renn.proxy.corp.xxxx:8080), loggingPrefs=org.openqa.selenium.logging.LoggingPreferences@5df041, browserName=chrome, version=, platform=ANY, unexpectedAlertBehaviour=accept}]
Build info: version: '3.4.0', revision: 'unknown', time: 'unknown'
System info: host: 'ITEM-72885', ip: '192.168.84.9', os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_66'
Driver info: driver.version: ChromeDriver
    at org.openqa.selenium.remote.BeanToJsonConverter.convertObject(BeanToJsonConverter.java:88)
    at org.openqa.selenium.remote.BeanToJsonConverter.convert(BeanToJsonConverter.java:66)
    ... 84 more
Caused by: java.lang.ClassCastException: java.util.HashMap cannot be cast to java.lang.String
    at org.openqa.selenium.remote.BeanToJsonConverter.convertObject(BeanToJsonConverter.java:223)
    at org.openqa.selenium.remote.BeanToJsonConverter.convertObject(BeanToJsonConverter.java:143)
    at org.openqa.selenium.remote.BeanToJsonConverter.convertObject(BeanToJsonConverter.java:189)
    at org.openqa.selenium.remote.BeanToJsonConverter.convertObject(BeanToJsonConverter.java:86)
    ... 85 more

---

升级驱动程序版本时问题已解决