Ibm mobilefirst 无法在MobileFirst V8.0消费者版中调用适配器过程

我使用的是MobileFirstV8.0消费者版。我已经为我的应用程序设置了测试服务器。当我从移动应用程序调用适配器过程（受安全检查保护）时，服务器中出现以下错误：

[8/25/16 15:10:08:879 CDT] 0000010b com.ibm.mfp.server.az.internal.ConfidentialClientHelper      E Unable to sign access token
com.ibm.mfp.server.security.shared.webtoken.WebTokenException: com.ibm.mfp.server.security.shared.webtoken.WebTokenException: Unsupported credentials type
    at com.ibm.mfp.server.security.shared.webtoken.JWS.sign(JWS.java:191)
    at com.ibm.mfp.server.az.internal.ConfidentialClientHelper.generateAccessToken(ConfidentialClientHelper.java:94)
    at com.ibm.mfp.server.az.internal.token.TokenEndpointImpl.generateTokenResponse(TokenEndpointImpl.java:170)
    at com.ibm.mfp.server.az.internal.token.TokenEndpointImpl.serveAuthorizationCodeGrantType(TokenEndpointImpl.java:147)
    at com.ibm.mfp.server.az.internal.token.TokenEndpointImpl.getToken(TokenEndpointImpl.java:96)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:776)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:705)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:868)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:595)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1285)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:776)
    at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:473)
    at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1104)
    at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:81)
    at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:912)
    at com.ibm.ws.webcontainer.osgi.DynamicVirtualHost$2.run(DynamicVirtualHost.java:262)
    at com.ibm.ws.http.dispatcher.internal.channel.HttpDispatcherLink$TaskWrapper.run(HttpDispatcherLink.java:955)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)
Caused by: com.ibm.mfp.server.security.shared.webtoken.WebTokenException: Unsupported credentials type
    at com.ibm.mfp.server.security.shared.webtoken.PKICredentials.getRsaPublicKey(PKICredentials.java:120)
    at com.ibm.mfp.server.security.shared.webtoken.PKICredentials.createWebKey(PKICredentials.java:96)
    at com.ibm.mfp.server.security.shared.webtoken.PKICredentials.createHeader(PKICredentials.java:48)
    at com.ibm.mfp.server.security.shared.webtoken.JWS.sign(JWS.java:186)
    ... 32 more

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此外，我正在MFP服务器实例中使用用户定义的密钥库。

我使用以下命令和文档中描述的

-keyalg RSA

选项重新生成密钥库，并重新配置密钥库，此错误消失：

keytool -keystore <keystore name> -genkey -alias <alias name> -keylag RSA

keytool-keystore-genkey-alias