Oauth 2.0 cas oauth谷歌失败

我正在尝试将CAS集成到我们的web应用程序中，以便通过OAuth 2.0进行身份验证，我已经从“.”（客户端演示）下载了演示应用程序。并将其部署在tomcat7中，但在使用Google帐户进行身份验证时引发异常。我已尝试编写另一个提供程序，身份验证正常，但无法重定向到我的原始网页

下面是错误消息。有人熟悉CAS Oauth吗？期待您的回答，谢谢。

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{“failure”：“true”，“exception.message”：“org.springframework.webflow.execution.ActionExecutionException:org.jasig.cas.support.oauth.web.flow执行时引发的异常。OAuthAction@1077092在流“login”的状态“oauthAction”——操作执行属性为“map[[empty]]”，“exception.stacktrace”：“org.springframework.webflow.execution.ActionExecutionException:在执行org.jasig.cas.support.oauth.web.flow时引发的异常。OAuthAction@1077092在流“login”的状态“oauthAction”-操作执行属性为“map[[empty]]”\r\n\t org.springframework.webflow.execution.ActionExecutor.execute（ActionExecutor.java:60）\r\n\tat org.springframework.webflow.action.EvaluateAction.doExecute（EvaluateAction.java:77）\r\n\tat org.springframework.webflow.action.AbstractAction.execute（AbstractAction.java:188）\r\n\tat org.springframework.webflow.execution.AnnotatedAction.execute（AnnotatedAction.java:145）\r\n\tat org.springframework.webflow.execute（ActionExecutor.java:51）\r\n\tat org.springframework.webflow.engine.ActionState.doEnter（ActionState.java:101）\r\n\tat org.springframework.webflow.engine.enter（State.java:194）\r\n\tat org.springframework.webflow.engine.start（Flow.java:535）\r\n\tat org.springframework.webflow.engine.impl.FlowExecutionImpl.start（FlowExecutionImpl.java:366）\r\n\tat org.springframework.webflow.engine.impl.FlowExecutionImpl.start（FlowExecutionImpl.java:225）\r\n\tat org.springframework.webflow.executor.FlowExecutionImpl.launchExecution（FlowExecutionImpl.java:140）\r\n\tat org.springframework.webflow.mvc.servlet.FlowHandlerAdapter.Handler.Handler（FlowHandlerAdapter.java:193）\r\n\tat org.springframework.web.servlet.DispatcherServlet.doDispatch（DispatcherServlet.java:923）\r\n\tat org.springframework.web.servlet.DispatcherServlet.doService（DispatcherServlet.java:852）\r\n\tat org.springframework.web.servlet.FrameworkServlet.processRequest（FrameworkServlet.java:882）\r\n\tat org.springframework.web.servlet.FrameworkServlet.doGet（FrameworkServlet.java:778）\r\n\tat javax.servlet.http.HttpServlet.service（HttpServlet.java:621）\r\n\tat javax.servlet.http.HttpServlet.service（HttpServlet.java:722）\r\n\tat org.jasig.cas.web.init.SafeDispatcherServlet.service\u aroundBody2（SafeDispatcherServlet.java:128）\r\n\tat org.jasig.cas.web.init.SafeDispatcherServlet.service\u aroundbody 3$advice（SafeDispatcherServlet.java:57）\r\n\tat org.jasig.cas.web.init.SafeDispatcherServlet.service（SafeDispatcherServlet.java:1）\r\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:305）\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:210）\r\n\tat org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal（CharacterEncodingFilter.java:88）\r\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:76）\r\n\t org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate（DelegatingFilterProxy.java:346）\r\n\t org.springframework.web.filter.DelegatingFilterProxy.doFilter（DelegatingFilterProxy.java:259）\r\n\t org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:243）\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:210）\r\n\tat com.github.inspektr.common.web.ClientInfoThreadLocalFilter.doFilter（ClientInfoThreadLocalFilter.java:63）\r\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:243）\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:210）\r\n\tat org.apache.catalina.core.StandardWrapperValve.invoke（StandardWrapperValve.java:224）\r\n\tat org.apache.catalina.core.StandardContextValve.invoke（StandardContextValve.java:169）\r\n\tat org.apache.catalina.authenticator.AuthenticatorBase.invoke（AuthenticatorBase.java:472）\r\n\tat org.apache.catalina.core.StandardHostValve.invoke（StandardHostValve.java:168）\r\n\tat org.apache.catalina.valves.ErrorReportValve.invoke（ErrorReportValve.java:98）\r\n\tat org.apache.catalina.valves.AccessLogValve.invoke（AccessLogValve.java:927）\r\n\tat org.apache.catalina.core.StandardEngineValve.invoke（StandardEngineValve.java:118）\r\n\tat org.apache.catalina.connector.CoyoteAdapter.service（CoyoteAdapter.java:407）\r\n\tat org.apache.coyote.http11.AbstractHttp11Processor.process（AbstractHttp11Processor.java:987）\r\n\tat org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process（AbstractProtocol.java:579）\r\n\tat org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run（JIoEndpoint.java:307）\r\n\tat java.util.concurrent.ThreadPoolExecutor$Worker.runTask（ThreadPoolExecutor.java:886）\r\n\tat java.util.concurrent.ThreadPoolExecutor$Worker.run（ThreadPoolExecutor.java:908）\r\n\tat java.lang.Thread.run（Thread.java:662）\r\n使用者：java.lang.NullPointerException\r\n\tat org.jasig.cas.support.oauth.web.flow.OAuthAction.doExecute（OAuthAction.java:93）\r\n\tat org.springframework.webflow.action.AbstractAction.execute（AbstractActionExecutor.java:51）\r\n\t…45更多\r\n“}我是CAS OAuth支持的创建者。Google已经删除了对Google OAuth 1.0的支持。您必须使用Google2Provider类切换到Google OAuth 2.0支持。

非常感谢jleleu的澄清。我仍然对CAS OAuth有一个问题。我已经尝试了SinaWeiboApi20，身份验证是可以的，但是