[400] An error occurred while sending an authentication request to the vCenter Single Sign-On server - An error occurred when processing the metadata during vCenter Single Sign-On setup

version: vSphere Client version 6.5.0.20000
hi,
when try to proxy through STS ide (Virgo server). getting an error for null metadata.

vsphere_client-virgo.log

[2019-12-05T15:21:03.458-05:00] [INFO ] http-bio-9443-exec-9 70000090 100001 ###### c.v.vsphere.client.security.websso.WebssoLoginRequestHandler Received WebSSO login request

[2019-12-05T15:21:03.459-05:00] [INFO ] http-bio-9443-exec-9 70000090 100001 ###### com.vmware.vsphere.client.security.websso.MetadataGeneratorImpl Processing WebSSO metadata

[2019-12-05T15:21:03.459-05:00] [INFO ] http-bio-9443-exec-9 70000090 100001 ###### com.vmware.vsphere.client.security.websso.MetadataGeneratorImpl SP url generated is https://localhost:9443/ui

[2019-12-05T15:21:03.492-05:00] [INFO ] http-bio-9443-exec-9 70000090 100001 ###### com.vmware.vise.util.concurrent.client.ClientMonitorImpl Monitor never authenticated.

[2019-12-05T15:21:04.267-05:00] [ERROR] http-bio-9443-exec-9 70000090 100001 ###### com.vmware.vsphere.client.security.websso.MetadataGeneratorImpl Error when registering ngc metadata. com.vmware.vim.binding.sso.fault.NotAuthenticated: null

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)

at java.lang.reflect.Constructor.newInstance(Unknown Source)

at java.lang.Class.newInstance(Unknown Source)

at com.vmware.vim.vmomi.core.types.impl.ComplexTypeImpl.newInstance(ComplexTypeImpl.java:174)

at com.vmware.vim.vmomi.core.types.impl.DefaultDataObjectFactory.newDataObject(DefaultDataObjectFactory.java:25)

at com.vmware.vim.vmomi.core.soap.impl.unmarshaller.ComplexStackContext.<init>(ComplexStackContext.java:30)

at com.vmware.vim.vmomi.core.soap.impl.unmarshaller.UnmarshallerImpl$UnmarshallSoapFaultContext.parse(UnmarshallerImpl.java:150)

at com.vmware.vim.vmomi.core.soap.impl.unmarshaller.UnmarshallerImpl$UnmarshallSoapFaultContext.unmarshall(UnmarshallerImpl.java:101)

at com.vmware.vim.vmomi.core.soap.impl.unmarshaller.UnmarshallerImpl.unmarshalSoapFault(UnmarshallerImpl.java:88)

at com.vmware.vim.vmomi.core.soap.impl.unmarshaller.UnmarshallerImpl.unmarshalSoapFault(UnmarshallerImpl.java:83)

at com.vmware.vim.vmomi.client.common.impl.SoapFaultStackContext.setValue(SoapFaultStackContext.java:40)

at com.vmware.vim.vmomi.client.common.impl.ResponseUnmarshaller.processNextElement(ResponseUnmarshaller.java:127)

at com.vmware.vim.vmomi.client.common.impl.ResponseUnmarshaller.unmarshal(ResponseUnmarshaller.java:70)

at com.vmware.vim.vmomi.client.common.impl.ResponseImpl.unmarshalResponse(ResponseImpl.java:274)

at com.vmware.vim.vmomi.client.common.impl.ResponseImpl.setResponse(ResponseImpl.java:230)

at com.vmware.vim.vmomi.client.http.impl.HttpExchangeBase.parseResponse(HttpExchangeBase.java:150)

at com.vmware.vim.vmomi.client.http.impl.HttpExchange.run(HttpExchange.java:48)

at com.vmware.vim.vmomi.client.http.impl.HttpProtocolBindingBase.executeRunnable(HttpProtocolBindingBase.java:226)

at com.vmware.vim.vmomi.client.http.impl.HttpProtocolBindingImpl.send(HttpProtocolBindingImpl.java:110)

at com.vmware.vim.vmomi.client.common.impl.MethodInvocationHandlerImpl$CallExecutor.sendCall(MethodInvocationHandlerImpl.java:613)

at com.vmware.vim.vmomi.client.common.impl.MethodInvocationHandlerImpl$CallExecutor.executeCall(MethodInvocationHandlerImpl.java:594)

at com.vmware.vim.vmomi.client.common.impl.MethodInvocationHandlerImpl.completeCall(MethodInvocationHandlerImpl.java:345)

at com.vmware.vim.vmomi.client.common.impl.MethodInvocationHandlerImpl.invokeOperation(MethodInvocationHandlerImpl.java:305)

at com.vmware.vim.vmomi.client.common.impl.MethodInvocationHandlerImpl.invoke(MethodInvocationHandlerImpl.java:179)

at com.sun.proxy.$Proxy157.importSAMLMetadata(Unknown Source)

at com.vmware.vsphere.client.security.websso.MetadataGeneratorImpl.createSPConfiguration(MetadataGeneratorImpl.java:509)

at com.vmware.vsphere.client.security.websso.MetadataGeneratorImpl.getSPConfiguration(MetadataGeneratorImpl.java:362)

at com.vmware.vsphere.client.security.websso.MetadataGeneratorImpl.processMetadata(MetadataGeneratorImpl.java:289)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:319)

at org.eclipse.gemini.blueprint.service.importer.support.internal.aop.ServiceInvoker.doInvoke(ServiceInvoker.java:56)

at org.eclipse.gemini.blueprint.service.importer.support.internal.aop.ServiceInvoker.invoke(ServiceInvoker.java:60)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)

at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)

at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)

at org.eclipse.gemini.blueprint.service.importer.support.LocalBundleContextAdvice.invoke(LocalBundleContextAdvice.java:57)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)

at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)

at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)

at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)

at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)

at com.sun.proxy.$Proxy348.processMetadata(Unknown Source)

at com.vmware.vsphere.client.security.websso.WebssoLoginRequestHandler.handleRequest(WebssoLoginRequestHandler.java:59)

at org.springframework.web.context.support.HttpRequestHandlerServlet.service(HttpRequestHandlerServlet.java:67)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at com.vmware.vise.extensionfw.DeploymentFilter.doFilter(DeploymentFilter.java:55)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at com.vmware.vsphere.client.logging.MDCLogFilter.doFilterInternal(MDCLogFilter.java:41)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at com.vmware.vise.util.i18n.I18nFilter.doFilterInternal(I18nFilter.java:43)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at com.vmware.vise.security.SessionManagementFilter.doFilter(SessionManagementFilter.java:146)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:186)

at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)

at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)

at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)

at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:683)

at org.eclipse.virgo.web.tomcat.support.ApplicationNameTrackingValve.invoke(ApplicationNameTrackingValve.java:33)

at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)

at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:620)

at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)

at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

at java.lang.Thread.run(Unknown Source)

[2019-12-05T15:21:04.271-05:00] [ERROR] http-bio-9443-exec-9 70000090 100001 ###### com.vmware.vsphere.client.security.websso.MetadataGeneratorImpl Failed to process WebSSO metadata com.vmware.vim.binding.sso.fault.NotAuthenticated: null