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我已经用Java中的Selenium库编写了一些逻辑来执行一些简单的Web抓取（逻辑对于此问题并不重要），该工具从简单的测试文件我的Java Web项目中的main（）函数。当我尝试移动这样的逻辑代码，甚至只是把这个代码无论从我的实际servlet或JSP文件时，服务器崩溃与此异常：Selenium在Java Web项目上运行时抛出“NoSuchMethodError”
java.lang.NoSuchMethodError: com.google.common.base.Preconditions.checkState(ZLjava/lang/String;Ljava/lang/Object;)V
at org.openqa.selenium.remote.service.DriverService.checkExecutable(DriverService.java:136)
at org.openqa.selenium.firefox.GeckoDriverService.access$000(GeckoDriverService.java:41)
at org.openqa.selenium.firefox.GeckoDriverService$Builder.usingFirefoxBinary(GeckoDriverService.java:108)
at org.openqa.selenium.firefox.FirefoxDriver.toExecutor(FirefoxDriver.java:204)
at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:103)
at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:99)
at scraping.OneCardScraper.<init>(OneCardScraper.java:41)
at org.apache.jsp.Home_jsp._jspService(Home_jsp.java:212)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:411)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:473)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:377)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:416)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:283)
at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:206)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:180)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:283)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:200)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:132)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:111)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:536)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:591)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:571)
at java.lang.Thread.run(Thread.java:745)
错误指向这一行：driver = new FirefoxDriver();
我在这里做错了什么？
我非常困惑，为什么Selenium依赖可能在Web平台上遇到麻烦，而不是典型的测试运行，因为依赖关系应该继续。
我曾尝试：
- 重新启动IDE几次
- 清洗，建筑物等
- 迁移整个项目到一个基于Maven的依赖系统
- 更改浏览器键入硒（PhantomJS，HTMLUnit，Chrome，FireFox）
- 将Webdriver位置变量添加到web.xml上下文参数中
我使用：
- 的Netbeans 8.2
- 的Java EE 7
- 硒3.5.3
我认为你在服务器模式下运行它可能会导致问题。与Gui应用程序相比，服务器的环境可能不同。 –
@TarunLalwani我认为你可能是对的，但我不确定如何让硒在这个服务器环境中运行，如果可能的话。 –
您正在使用glassfishserver，您可以尝试其他的东西吗？像码头或其他服务器？ –