从SAP中获取CloudSDK客户端所需的具体内容是什么，以便进行主传播？

Question

我想发送一个自定义的OData请求到一个内置的SAP系统，使用CloudSDK 3.20.0。“自定义”意味着我不能使用虚拟数据模型，而是“手工”组装请求URL，并将响应单独处理，就像常规REST请求一样。

我的应用程序使用Java和Spring运行。预期的请求需要一段时间才能完成，因此是从异步线程发送的。

我已经设置了一个云连接器，可以证明代码和配置在几个使用基本身份验证的目的地上运行良好。现在，试图第一次使用主体传播时，代码在尝试获取HTTP客户端时异常失败：

try {
    Destination destination = DestinationAccessor.getDestination(destinationName);
    HttpDestination httpDestination = destination.asHttp().decorate(DefaultErpHttpDestination::new);
    // this fails:
    HttpClient httpClient = HttpClientAccessor.getHttpClient(httpDestination);
    // ...
} catch (Exception exception) {
    // receives 
    // DestinationAccessException: "Failed to get on-premise proxy headers."
    //     PrincipalAccessException: "Could not read a principal from neither
    //         a given JWT nor a given Basic Authentication header."
    // full stack trace below
}

我的假设是，我对运行在其中的异步线程做了一些错误，我没有完全地或以正确的方式传递上下文，以便CloudSDK传播主体。

我要做的一件事是，我使用AuthTokenAccessor.getCurrentToken()检索原始线程中的安全令牌，并使用AuthTokenAccessor.executeWithAuthToken(authToken, command::run)将令牌传播到从那里异步启动的线程。

不幸的是，带有CloudSDK的异步线程是一个相当空白的空间，我找不到任何文档或教程来解释这里到底需要什么。

堆栈跟踪

com.sap.cloud.sdk.cloudplatform.connectivity.exception.DestinationAccessException: Failed to get on-premise proxy headers.
    at com.sap.cloud.sdk.cloudplatform.connectivity.ConnectivityService.getHeadersForOnPremiseSystem(ConnectivityService.java:62)
    at com.sap.cloud.sdk.cloudplatform.connectivity.ScpCfHttpDestinationPropertyFactory.getOnPremiseProxyHeaders(ScpCfHttpDestinationPropertyFactory.java:673)
    at com.sap.cloud.sdk.cloudplatform.connectivity.ScpCfHttpDestinationPropertyFactory.getHeadersFromDestination(ScpCfHttpDestinationPropertyFactory.java:591)
    at com.sap.cloud.sdk.cloudplatform.connectivity.ScpCfHttpDestination.<init>(ScpCfHttpDestination.java:173)
    at com.sap.cloud.sdk.cloudplatform.connectivity.ScpCfHttpDestination.<init>(ScpCfHttpDestination.java:79)
    at com.sap.cloud.sdk.cloudplatform.connectivity.ScpCfDestination.asHttp(ScpCfDestination.java:49)
    at com.sap.grc.automatedprocedures.api.odataadapter.common.http.DefaultHttpClientFactory.getHttpDestination(DefaultHttpClientFactory.java:56)
    at com.sap.grc.automatedprocedures.api.odataadapter.common.http.DefaultHttpClientFactory.getHttpDestinationProperties(DefaultHttpClientFactory.java:44)
    at com.sap.grc.automatedprocedures.api.odataadapter.common.http.DefaultHttpClientFactory.getHttpClient(DefaultHttpClientFactory.java:32)
    at com.sap.grc.automatedprocedures.api.odataadapter.common.http.DefaultHttpClientFactory$$FastClassBySpringCGLIB$$87b87cd0.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691)
    at com.sap.grc.automatedprocedures.api.odataadapter.common.http.DefaultHttpClientFactory$$EnhancerBySpringCGLIB$$8d195096.getHttpClient(<generated>)
    at com.sap.grc.automatedprocedures.api.odataadapter.common.http.DefaultHttpClientRetryExecutor.getHttpClient(DefaultHttpClientRetryExecutor.java:57)
    at com.sap.grc.automatedprocedures.api.odataadapter.common.http.DefaultHttpClientRetryExecutor.executeAndGetResponse(DefaultHttpClientRetryExecutor.java:49)
    at com.sap.grc.automatedprocedures.api.odataadapter.common.http.DefaultHttpClientRetryExecutor.executeWithRetry(DefaultHttpClientRetryExecutor.java:38)
    at com.sap.grc.automatedprocedures.api.odataadapter.common.http.DefaultHttpClientRetryExecutor$$FastClassBySpringCGLIB$$aa3836e1.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.retry.interceptor.RetryOperationsInterceptor$1.doWithRetry(RetryOperationsInterceptor.java:91)
    at org.springframework.retry.support.RetryTemplate.doExecute(RetryTemplate.java:287)
    at org.springframework.retry.support.RetryTemplate.execute(RetryTemplate.java:164)
    at org.springframework.retry.interceptor.RetryOperationsInterceptor.invoke(RetryOperationsInterceptor.java:118)
    at org.springframework.retry.annotation.AnnotationAwareRetryOperationsInterceptor.invoke(AnnotationAwareRetryOperationsInterceptor.java:153)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691)
    at com.sap.grc.automatedprocedures.api.odataadapter.common.http.DefaultHttpClientRetryExecutor$$EnhancerBySpringCGLIB$$4196dda3.executeWithRetry(<generated>)
    at com.sap.grc.automatedprocedures.api.odataadapter.common.http.DefaultRequestExecutor.executeGetRequestAndReturnHttpResponse(DefaultRequestExecutor.java:66)
    at com.sap.grc.automatedprocedures.api.odataadapter.common.http.DefaultRequestExecutor.executeGetRequest(DefaultRequestExecutor.java:48)
    at com.sap.grc.automatedprocedures.api.odataadapter.common.http.DefaultRequestExecutor$$FastClassBySpringCGLIB$$209b987b.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691)
    at com.sap.grc.automatedprocedures.api.odataadapter.common.http.DefaultRequestExecutor$$EnhancerBySpringCGLIB$$fdefc677.executeGetRequest(<generated>)
    at com.sap.grc.automatedprocedures.api.odataadapter.metadataadapters.DefaultOdataResultMetadataReader.readMetadata(DefaultOdataResultMetadataReader.java:32)
    at com.sap.grc.automatedprocedures.api.odataadapter.metadataadapters.DefaultOdataResultMetadataReader$$FastClassBySpringCGLIB$$7f270a2b.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691)
    at com.sap.grc.automatedprocedures.api.odataadapter.metadataadapters.DefaultOdataResultMetadataReader$$EnhancerBySpringCGLIB$$2aaea987.readMetadata(<generated>)
    at com.sap.grc.automatedprocedures.api.odataadapter.metadataadapters.OdataResultMetadataAdapter.enrichMetadata(OdataResultMetadataAdapter.java:53)
    at com.sap.grc.automatedprocedures.api.odataadapter.metadataadapters.OdataResultMetadataAdapter$$FastClassBySpringCGLIB$$7e0d7c0e.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691)
    at com.sap.grc.automatedprocedures.api.odataadapter.metadataadapters.OdataResultMetadataAdapter$$EnhancerBySpringCGLIB$$b15ac510.enrichMetadata(<generated>)
    at com.sap.grc.automatedprocedures.businesslogic.core.automatedprocedure.AutomatedProcedureMetadataRequestorTransaction.requestAndSaveMetadata(AutomatedProcedureMetadataRequestorTransaction.java:62)
    at com.sap.grc.automatedprocedures.businesslogic.core.automatedprocedure.AutomatedProcedureMetadataRequestorTransaction$$FastClassBySpringCGLIB$$319e3277.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:366)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:118)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:691)
    at com.sap.grc.automatedprocedures.businesslogic.core.automatedprocedure.AutomatedProcedureMetadataRequestorTransaction$$EnhancerBySpringCGLIB$$d02aa2a4.requestAndSaveMetadata(<generated>)
    at com.sap.grc.automatedprocedures.businesslogic.core.automatedprocedure.DefaultAutomatedProcedureMetadataRequestor.requestAndSaveMetadata(DefaultAutomatedProcedureMetadataRequestor.java:35)
    at com.sap.grc.automatedprocedures.businesslogic.core.automatedprocedure.DefaultAutomatedProcedureMetadataRequestor$$FastClassBySpringCGLIB$$7ff09138.invoke(<generated>)
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:771)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:749)
    at org.springframework.aop.interceptor.AsyncExecutionInterceptor.lambda$invoke$0(AsyncExecutionInterceptor.java:115)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at com.sap.cloud.sdk.cloudplatform.security.AuthTokenAccessor.lambda$executeWithAuthToken$3(AuthTokenAccessor.java:206)
    at com.sap.cloud.sdk.cloudplatform.thread.ThreadContextCallable.call(ThreadContextCallable.java:247)
    at com.sap.cloud.sdk.cloudplatform.thread.AbstractThreadContextExecutor.execute(AbstractThreadContextExecutor.java:293)
    at com.sap.cloud.sdk.cloudplatform.security.AuthTokenAccessor.executeWithAuthToken(AuthTokenAccessor.java:188)
    at com.sap.cloud.sdk.cloudplatform.security.AuthTokenAccessor.executeWithAuthToken(AuthTokenAccessor.java:205)
    at com.sap.grc.automatedprocedures.configuration.asynchronouslythreads.RequestContextExecutorConfiguration$WrappedExecutor.lambda$execute$0(RequestContextExecutorConfiguration.java:58)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:836)
Caused by: com.sap.cloud.sdk.cloudplatform.resilience.ResilienceRuntimeException: com.sap.cloud.sdk.cloudplatform.thread.exception.ThreadContextExecutionException: com.sap.cloud.sdk.cloudplatform.security.exception.TokenRequestFailedException: Failed to determine cache key.
    at com.sap.cloud.sdk.frameworks.resilience4j.Resilience4jDecorationStrategy.lambda$null$2(Resilience4jDecorationStrategy.java:181)
    at io.vavr.control.Try.onFailure(Try.java:659)
    at com.sap.cloud.sdk.frameworks.resilience4j.Resilience4jDecorationStrategy.lambda$decorateCallable$3(Resilience4jDecorationStrategy.java:180)
    at com.sap.cloud.sdk.cloudplatform.resilience.ResilienceDecorationStrategy.executeCallable(ResilienceDecorationStrategy.java:210)
    at com.sap.cloud.sdk.cloudplatform.resilience.ResilienceDecorator.executeCallable(ResilienceDecorator.java:197)
    at com.sap.cloud.sdk.cloudplatform.connectivity.ConnectivityService.getHeadersForOnPremiseSystem(ConnectivityService.java:50)
    ... 130 more
Caused by: com.sap.cloud.sdk.cloudplatform.thread.exception.ThreadContextExecutionException: com.sap.cloud.sdk.cloudplatform.security.exception.TokenRequestFailedException: Failed to determine cache key.
    at com.sap.cloud.sdk.cloudplatform.thread.AbstractThreadContextExecutor.execute(AbstractThreadContextExecutor.java:299)
    at com.sap.cloud.sdk.frameworks.resilience4j.DefaultThreadContextProvider.lambda$decorateCallable$0(DefaultThreadContextProvider.java:26)
    ... 4 more
Caused by: com.sap.cloud.sdk.cloudplatform.security.exception.TokenRequestFailedException: Failed to determine cache key.
    at com.sap.cloud.sdk.cloudplatform.connectivity.XsuaaService.lambda$getUserTokenCacheKey$1(XsuaaService.java:106)
    at io.vavr.control.Try.getOrElseThrow(Try.java:748)
    at com.sap.cloud.sdk.cloudplatform.connectivity.XsuaaService.getUserTokenCacheKey(XsuaaService.java:106)
    at com.sap.cloud.sdk.cloudplatform.connectivity.XsuaaService.retrieveAccessTokenViaUserTokenGrant(XsuaaService.java:300)
    at com.sap.cloud.sdk.cloudplatform.connectivity.PrincipalPropagationStrategy.getHeadersWithRecommendedStrategy(PrincipalPropagationStrategy.java:202)
    at com.sap.cloud.sdk.cloudplatform.connectivity.ConnectivityService.lambda$getHeadersForOnPremiseSystem$0(ConnectivityService.java:51)
    at com.sap.cloud.sdk.frameworks.resilience4j.Resilience4jDecorationStrategy.lambda$decorateCallable$1(Resilience4jDecorationStrategy.java:160)
    at com.sap.cloud.sdk.cloudplatform.thread.ThreadContextCallable.call(ThreadContextCallable.java:247)
    at com.sap.cloud.sdk.cloudplatform.thread.AbstractThreadContextExecutor.execute(AbstractThreadContextExecutor.java:293)
    ... 5 more
Caused by: com.sap.cloud.sdk.cloudplatform.security.principal.exception.PrincipalAccessException: Could not read a principal from neither a given JWT nor a given Basic Authentication header.
    at com.sap.cloud.sdk.cloudplatform.security.principal.ScpCfPrincipalFacade.createFallbackException(ScpCfPrincipalFacade.java:92)
    at com.sap.cloud.sdk.cloudplatform.security.principal.ScpCfPrincipalFacade.tryGetCurrentPrincipal(ScpCfPrincipalFacade.java:87)
    at io.vavr.control.Try.flatMapTry(Try.java:490)
    at io.vavr.control.Try.flatMap(Try.java:472)
    at com.sap.cloud.sdk.cloudplatform.security.principal.PrincipalAccessor.tryGetCurrentPrincipal(PrincipalAccessor.java:112)
    at com.sap.cloud.sdk.cloudplatform.security.principal.PrincipalAccessor.getCurrentPrincipal(PrincipalAccessor.java:95)
    at com.sap.cloud.sdk.cloudplatform.cache.CacheKey.ofTenantAndPrincipalIsolation(CacheKey.java:184)
    at io.vavr.control.Try.of(Try.java:75)
    at com.sap.cloud.sdk.cloudplatform.connectivity.XsuaaService.getUserTokenCacheKey(XsuaaService.java:105)
    ... 11 more
    Suppressed: com.sap.cloud.sdk.cloudplatform.security.principal.exception.PrincipalAccessException: Could not read a principal from neither a given JWT nor a given Basic Authentication header.
        at com.sap.cloud.sdk.cloudplatform.security.principal.ScpCfPrincipalFacade.createFallbackException(ScpCfPrincipalFacade.java:92)
        at com.sap.cloud.sdk.cloudplatform.security.principal.ScpCfPrincipalFacade.tryGetCurrentPrincipal(ScpCfPrincipalFacade.java:87)
        at io.vavr.control.Try.flatMapTry(Try.java:490)
        at io.vavr.control.Try.flatMap(Try.java:472)
        at com.sap.cloud.sdk.cloudplatform.security.principal.PrincipalAccessor.tryGetCurrentPrincipal(PrincipalAccessor.java:112)
        at com.sap.cloud.sdk.cloudplatform.security.principal.PrincipalThreadContextListener.afterInitialize(PrincipalThreadContextListener.java:79)
        at com.sap.cloud.sdk.cloudplatform.thread.ThreadContextCallable.notifyAfterInitialize(ThreadContextCallable.java:144)
        at com.sap.cloud.sdk.cloudplatform.thread.ThreadContextCallable.call(ThreadContextCallable.java:245)
        at com.sap.cloud.sdk.cloudplatform.thread.AbstractThreadContextExecutor.execute(AbstractThreadContextExecutor.java:293)
        at com.sap.cloud.sdk.cloudplatform.security.AuthTokenAccessor.executeWithAuthToken(AuthTokenAccessor.java:188)
        at com.sap.cloud.sdk.cloudplatform.security.AuthTokenAccessor.executeWithAuthToken(AuthTokenAccessor.java:205)
        at com.sap.grc.automatedprocedures.configuration.asynchronouslythreads.RequestContextExecutorConfiguration$WrappedExecutor.lambda$execute$0(RequestContextExecutorConfiguration.java:58)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        ... 4 more
        Suppressed: com.sap.cloud.sdk.cloudplatform.thread.exception.ThreadContextPropertyException: Property 'com.sap.cloud.sdk.cloudplatform.security.principal.PrincipalThreadContextListener:principal' does not exist.
            at com.sap.cloud.sdk.cloudplatform.thread.DefaultThreadContext.getProperty(DefaultThreadContext.java:45)
            at com.sap.cloud.sdk.cloudplatform.security.principal.DefaultPrincipalFacade.lambda$tryGetCurrentPrincipal$0(DefaultPrincipalFacade.java:28)
            at io.vavr.control.Try.flatMapTry(Try.java:490)
            at io.vavr.control.Try.flatMap(Try.java:472)
            at com.sap.cloud.sdk.cloudplatform.security.principal.DefaultPrincipalFacade.tryGetCurrentPrincipal(DefaultPrincipalFacade.java:28)
            at com.sap.cloud.sdk.cloudplatform.security.principal.ScpCfPrincipalFacade.tryGetCurrentPrincipal(ScpCfPrincipalFacade.java:81)
            ... 15 more
        Suppressed: com.sap.cloud.sdk.cloudplatform.security.principal.exception.PrincipalAccessException: There is no reader registered for grant type 'urn:ietf:params:oauth:grant-type:jwt-bearer'.
            at com.sap.cloud.sdk.cloudplatform.security.principal.AuthTokenPrincipalExtractor.lambda$getPrincipalId$c8b7f4af$1(AuthTokenPrincipalExtractor.java:97)
            at io.vavr.control.Try.of(Try.java:75)
            at com.sap.cloud.sdk.cloudplatform.security.principal.AuthTokenPrincipalExtractor.getPrincipalId(AuthTokenPrincipalExtractor.java:75)
            at com.sap.cloud.sdk.cloudplatform.security.principal.AuthTokenPrincipalExtractor.tryGetCurrentPrincipal(AuthTokenPrincipalExtractor.java:199)
            at io.vavr.control.Try.orElse(Try.java:726)
            at com.sap.cloud.sdk.cloudplatform.security.principal.ScpCfPrincipalFacade.tryGetCurrentPrincipal(ScpCfPrincipalFacade.java:83)
            ... 15 more
        Suppressed: com.sap.cloud.sdk.cloudplatform.thread.exception.ThreadContextPropertyException: Property 'com.sap.cloud.sdk.cloudplatform.servlet.RequestThreadContextListener:request' does not exist.
            at com.sap.cloud.sdk.cloudplatform.thread.DefaultThreadContext.getProperty(DefaultThreadContext.java:45)
            at com.sap.cloud.sdk.cloudplatform.servlet.DefaultRequestFacade.lambda$tryGetCurrentRequest$0(DefaultRequestFacade.java:29)
            at io.vavr.control.Try.flatMapTry(Try.java:490)
            at io.vavr.control.Try.flatMap(Try.java:472)
            at com.sap.cloud.sdk.cloudplatform.servlet.DefaultRequestFacade.tryGetCurrentRequest(DefaultRequestFacade.java:29)
            at com.sap.cloud.sdk.cloudplatform.servlet.RequestAccessor.tryGetCurrentRequest(RequestAccessor.java:87)
            at com.sap.cloud.sdk.cloudplatform.security.DefaultBasicAuthenticationFacade.extractBasicCredentialsFromRequest(DefaultBasicAuthenticationFacade.java:72)
            at io.vavr.control.Try.orElse(Try.java:726)
            at com.sap.cloud.sdk.cloudplatform.security.DefaultBasicAuthenticationFacade.tryGetBasicCredentials(DefaultBasicAuthenticationFacade.java:55)
            at com.sap.cloud.sdk.cloudplatform.security.BasicAuthenticationAccessor.tryGetCurrentBasicCredentials(BasicAuthenticationAccessor.java:57)
            at com.sap.cloud.sdk.cloudplatform.security.principal.BasicCredentialsPrincipalExtractor.tryGetCurrentPrincipal(BasicCredentialsPrincipalExtractor.java:20)
            at io.vavr.control.Try.orElse(Try.java:726)
            at com.sap.cloud.sdk.cloudplatform.security.principal.ScpCfPrincipalFacade.tryGetCurrentPrincipal(ScpCfPrincipalFacade.java:85)
            ... 15 more
    Suppressed: com.sap.cloud.sdk.cloudplatform.security.principal.exception.PrincipalAccessException: There is no reader registered for grant type 'urn:ietf:params:oauth:grant-type:jwt-bearer'.
        at com.sap.cloud.sdk.cloudplatform.security.principal.AuthTokenPrincipalExtractor.lambda$getPrincipalId$c8b7f4af$1(AuthTokenPrincipalExtractor.java:97)
        at io.vavr.control.Try.of(Try.java:75)
        at com.sap.cloud.sdk.cloudplatform.security.principal.AuthTokenPrincipalExtractor.getPrincipalId(AuthTokenPrincipalExtractor.java:75)
        at com.sap.cloud.sdk.cloudplatform.security.principal.AuthTokenPrincipalExtractor.tryGetCurrentPrincipal(AuthTokenPrincipalExtractor.java:199)
        at io.vavr.control.Try.orElse(Try.java:726)
        at com.sap.cloud.sdk.cloudplatform.security.principal.ScpCfPrincipalFacade.tryGetCurrentPrincipal(ScpCfPrincipalFacade.java:83)
        ... 18 more
    Suppressed: com.sap.cloud.sdk.cloudplatform.thread.exception.ThreadContextPropertyException: Property 'com.sap.cloud.sdk.cloudplatform.servlet.RequestThreadContextListener:request' does not exist.
        at com.sap.cloud.sdk.cloudplatform.thread.DefaultThreadContext.getProperty(DefaultThreadContext.java:45)
        at com.sap.cloud.sdk.cloudplatform.servlet.DefaultRequestFacade.lambda$tryGetCurrentRequest$0(DefaultRequestFacade.java:29)
        at io.vavr.control.Try.flatMapTry(Try.java:490)
        at io.vavr.control.Try.flatMap(Try.java:472)
        at com.sap.cloud.sdk.cloudplatform.servlet.DefaultRequestFacade.tryGetCurrentRequest(DefaultRequestFacade.java:29)
        at com.sap.cloud.sdk.cloudplatform.servlet.RequestAccessor.tryGetCurrentRequest(RequestAccessor.java:87)
        at com.sap.cloud.sdk.cloudplatform.security.DefaultBasicAuthenticationFacade.extractBasicCredentialsFromRequest(DefaultBasicAuthenticationFacade.java:72)
        at io.vavr.control.Try.orElse(Try.java:726)
        at com.sap.cloud.sdk.cloudplatform.security.DefaultBasicAuthenticationFacade.tryGetBasicCredentials(DefaultBasicAuthenticationFacade.java:55)
        at com.sap.cloud.sdk.cloudplatform.security.BasicAuthenticationAccessor.tryGetCurrentBasicCredentials(BasicAuthenticationAccessor.java:57)
        at com.sap.cloud.sdk.cloudplatform.security.principal.BasicCredentialsPrincipalExtractor.tryGetCurrentPrincipal(BasicCredentialsPrincipalExtractor.java:20)
        at io.vavr.control.Try.orElse(Try.java:726)
        at com.sap.cloud.sdk.cloudplatform.security.principal.ScpCfPrincipalFacade.tryGetCurrentPrincipal(ScpCfPrincipalFacade.java:85)
        ... 18 more

Answer 1

关于如何使用Cloud异步运行操作的子问题:即记录在这里。

AFAI可以看到你做的是正确的。如果不确定确切需要哪些信息，或者不想避免从授权令牌多次提取该信息，则可以考虑传递完整的线程上下文。

如果您发现文档缺少基本信息，或者对如何增强它有想法，我建议您提出一个问题或在公共GitHub上打开一个拉请求。

Answer 2

更新：

此身份验证类型为支持Cloud 3.26.0。

初始答案：

从示例性的异常堆栈跟踪中，我注意到授予类型urn:ietf:params:oauth:grant-type:jwt-bearer无法与预期的令牌类型匹配。这意味着supported并不真正支持它。老实说，看到这种情况我很惊讶。

你能告诉我们，你在做的是什么SCP景观吗？我们有办法复制你的装置吗？您从哪里获得访问令牌？你在使用应用路由器吗？

作为一种潜在的解决办法，在完成调查和修复之前，您可以尝试以下方法：

PrincipalFacade principalFacade = PrincipalAccessor.getPrincipalFacade();

((ScpCfPrincipalFacade) principalFacade).setIdExtractorFunction(
  "urn:ietf:params:oauth:grant-type:jwt-bearer",
  jwt -> jwt.getClaim("user_name").asString());