我尝试测试下面url中给出的Apache ode bpel示例。我正在调用我自己的休息服务（Spring），它返回字符串，没有输入参数，我只测试下面的示例中的GET操作，并删除了PUT，POST和DELETE
在调用其余服务时，它给出了以下异常。
ode:Fault Timeout or execution error when waiting for response to MEX {MyRoleMex#hqejbhcnphrcgnb4qit326 [Client hqejbhcnphrcgnb4qit325] calling {http://wso2.org/bps/sample}UserRestProcess.process(...)} java.util.concurrent.TimeoutException: Message exchange org.apache.ode.bpel.engine.MyRoleMessageExchangeImpl$ResponseFuture@56797a58 timed out(120000 ms) when waiting for a response! org.apache.ode.axis2.OdeFault: Timeout or execution error when waiting for response to MEX {MyRoleMex#hqejbhcnphrcgnb4qit326 [Client hqejbhcnphrcgnb4qit325] calling {http://wso2.org/bps/sample}UserRestProcess.process(...)} java.util.concurrent.TimeoutException: Message exchange org.apache.ode.bpel.engine.MyRoleMessageExchangeImpl$ResponseFuture@56797a58 timed out(120000 ms) when waiting for a response! at org.apache.ode.axis2.ODEService.onAxisMessageExchange(ODEService.java:169) at org.apache.ode.axis2.hooks.ODEMessageReceiver.invokeBusinessLogic(ODEMessageReceiver.java:69) at org.apache.ode.axis2.hooks.ODEMessageReceiver.invokeBusinessLogic(ODEMessageReceiver.java:52) at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:114) at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:181) at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:172) at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:146) at javax.servlet.http.HttpServlet.service(HttpServlet.java:648) at javax.servlet.http.HttpServlet.service(HttpServlet.java:729) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) at org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:71) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:176) at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145) at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92) at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:389) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:528) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1099) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:670) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1520) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1476) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745)
我在rest方法中放置了println语句，并且在控制台上看到了语句。从rest方法返回后不确定发生了什么。我已经花了很多时间试图找出根本原因，但没有运气。
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