Java SpringHTTP调用程序返回空代理，需要调试帮助吗

我已经尽可能地关注了，但是我仍然无法在运行时让它工作（我的配置基本相同，所以除非我错过了一个输入错误，否则没有必要发布它）

客户端启动正常，服务器也一样（我已经验证了服务器上的对象是实例化的），但是当我尝试访问代理对象的函数时（以及服务器对象上的方法从未被访问这一事实），就会出现nullpointer异常。这让我相信我没有正确访问代理

因此，我的问题是：

Spring文档中是否有未提及的常见错误源

除了从客户端访问之外，是否还有其他方法可以测试服务器上是否正确设置了代理 来自客户端的Stacktrace：

2009-07-28 16:29:57,270    ERROR  ig.ApplicationLifecycleAdvisor | Could not access HTTP invoker remote service at [http:/127.0.0.1:8080/<servlet-context>/<servlet-name>/Server]; nested exception is java.lang.NullPointerException
org.springframework.remoting.RemoteAccessException: Could not access HTTP invoker remote service at [http:/127.0.0.1:8080/<servlet-context>/<servlet-name>/Server]; nested exception is java.lang.NullPointerException
    at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.convertHttpInvokerAccessException(HttpInvokerClientInterceptor.java:211)
    at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.invoke(HttpInvokerClientInterceptor.java:144)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
    at $Proxy0.logon(Unknown Source)
    at se.<companyname>.client.connection.HttpServerConnection.logon(HttpServerConnection.java:55)
    at se.<companyname>.client.command.logon.LoginDialog$LoginOkCommand.doExecuteCommand(LoginDialog.java:134)
    at org.springframework.richclient.command.ActionCommand.execute(ActionCommand.java:219)
    at org.springframework.richclient.command.ActionCommand$1.actionPerformed(ActionCommand.java:132)
    at org.springframework.richclient.command.SwingActionAdapter.actionPerformed(SwingActionAdapter.java:71)
    at javax.swing.SwingUtilities.notifyAction(Unknown Source)
    at javax.swing.JComponent.processKeyBinding(Unknown Source)
    at javax.swing.JComponent.processKeyBindings(Unknown Source)
    at javax.swing.JComponent.processKeyEvent(Unknown Source)
    at java.awt.Component.processEvent(Unknown Source)
    at java.awt.Container.processEvent(Unknown Source)
    at java.awt.Component.dispatchEventImpl(Unknown Source)
    at java.awt.Container.dispatchEventImpl(Unknown Source)
    at java.awt.Component.dispatchEvent(Unknown Source)
    at java.awt.KeyboardFocusManager.redispatchEvent(Unknown Source)
    at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(Unknown Source)
    at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(Unknown Source)
    at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Source)
    at java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown Source)
    at java.awt.Component.dispatchEventImpl(Unknown Source)
    at java.awt.Container.dispatchEventImpl(Unknown Source)
    at java.awt.Window.dispatchEventImpl(Unknown Source)
    at java.awt.Component.dispatchEvent(Unknown Source)
    at java.awt.EventQueue.dispatchEvent(Unknown Source)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    at java.awt.Dialog$1.run(Unknown Source)
    at java.awt.Dialog$3.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.awt.Dialog.show(Unknown Source)
    at java.awt.Component.show(Unknown Source)
    at java.awt.Component.setVisible(Unknown Source)
    at java.awt.Window.setVisible(Unknown Source)
    at java.awt.Dialog.setVisible(Unknown Source)
    at org.springframework.richclient.dialog.ApplicationDialog.showDialog(ApplicationDialog.java:405)
    at se.<companyname>.client.jide.docking.JideLifecycleAdvisor.onPreWindowOpen(JideLifecycleAdvisor.java:47)
    at org.springframework.richclient.application.support.AbstractApplicationWindow.showPage(AbstractApplicationWindow.java:187)
    at org.springframework.richclient.application.support.AbstractApplicationWindow.showPage(AbstractApplicationWindow.java:158)
    at se.<companyname>.client.jide.docking.JideApplicationWindow.showPage(JideApplicationWindow.java:131)
    at org.springframework.richclient.application.Application.openWindow(Application.java:172)
    at org.springframework.richclient.application.Application.start(Application.java:254)
    at org.springframework.richclient.application.ApplicationLauncher$1.run(ApplicationLauncher.java:308)
    at java.awt.event.InvocationEvent.dispatch(Unknown Source)
    at java.awt.EventQueue.dispatchEvent(Unknown Source)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.lang.NullPointerException
    at sun.net.www.ParseUtil.toURI(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(Unknown Source)
    at org.springframework.remoting.httpinvoker.SimpleHttpInvokerRequestExecutor.writeRequestBody(SimpleHttpInvokerRequestExecutor.java:129)
    at org.springframework.remoting.httpinvoker.SimpleHttpInvokerRequestExecutor.doExecuteRequest(SimpleHttpInvokerRequestExecutor.java:64)
    at org.springframework.remoting.httpinvoker.AbstractHttpInvokerRequestExecutor.executeRequest(AbstractHttpInvokerRequestExecutor.java:136)
    at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.executeRequest(HttpInvokerClientInterceptor.java:191)
    at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.executeRequest(HttpInvokerClientInterceptor.java:173)
    at org.springframework.remoting.httpinvoker.HttpInvokerClientInterceptor.invoke(HttpInvokerClientInterceptor.java:141)
    ... 54 more

2009-07-28 16:29:57270错误ig.ApplicationLifecycleAdvisor |无法访问[HTTP:/127.0.0.1:8080///Server]上的HTTP调用程序远程服务；嵌套异常是java.lang.NullPointerException
org.springframework.remoting.RemoteAccessException:无法访问[HTTP:/127.0.0.1:8080///服务器]上的HTTP调用程序远程服务；嵌套异常是java.lang.NullPointerException
位于org.springframework.remoting.httpinvoker.HttpInvokerClientReceptor.convertHttpInvokerAccessException（HttpInvokerClientReceptor.java:211）
位于org.springframework.remoting.httpinvoker.httpinvokerclienterceptor.invoke（httpinvokerclienterceptor.java:144）
位于org.springframework.aop.framework.ReflectiveMethodInvocation.procedue（ReflectiveMethodInvocation.java:171）
位于org.springframework.aop.framework.JdkDynamicAopProxy.invoke（JdkDynamicAopProxy.java:204）
在$Proxy0.logon（未知源）
在se..client.connection.HttpServerConnection.logon（HttpServerConnection.java:55）
位于se..client.command.logon.LoginDialog$LoginOkCommand.doExecuteCommand（LoginDialog.java:134）
位于org.springframework.richclient.command.ActionCommand.execute（ActionCommand.java:219）
位于org.springframework.richclient.command.ActionCommand$1.actionPerformed（ActionCommand.java:132）
位于org.springframework.richclient.command.SwingActionAdapter.actionPerformed（SwingActionAdapter.java:71）
位于javax.swing.SwingUtilities.notifyAction（未知源）
位于javax.swing.JComponent.processKeyBinding（未知源）
位于javax.swing.JComponent.processKeyBindings（未知源）
位于javax.swing.JComponent.processKeyEvent（未知源）
位于java.awt.Component.processEvent（未知源）
位于java.awt.Container.processEvent（未知源）
位于java.awt.Component.dispatchEventImpl（未知源）
位于java.awt.Container.dispatchEventImpl（未知源）
位于java.awt.Component.dispatchEvent（未知源）
位于java.awt.KeyboardFocusManager.redispatchEvent（未知源）
位于java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent（未知源）
位于java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent（未知源）
位于java.awt.DefaultKeyboardFocusManager.typeAheadAssertions（未知源）
位于java.awt.DefaultKeyboardFocusManager.dispatchEvent（未知源）
位于java.awt.Component.dispatchEventImpl（未知源）
位于java.awt.Container.dispatchEventImpl（未知源）
位于java.awt.Window.dispatchEventImpl（未知源）
位于java.awt.Component.dispatchEvent（未知源）
位于java.awt.EventQueue.dispatchEvent（未知源）
位于java.awt.EventDispatchThread.pumpOneEventForFilters（未知源）
位于java.awt.EventDispatchThread.pumpEventsForFilter（未知源）
位于java.awt.EventDispatchThread.pumpEventsForFilter（未知源）
在java.awt.Dialog$1.run（未知源代码）
在java.awt.Dialog$3.run（未知源代码）
位于java.security.AccessController.doPrivileged（本机方法）
在java.awt.Dialog.show（未知源代码）
在java.awt.Component.show（未知源代码）
位于java.awt.Component.setVisible（未知源）
位于java.awt.Window.setVisible（未知源）
位于java.awt.Dialog.setVisible（未知源）
位于org.springframework.richclient.dialog.ApplicationDialog.showDialog（ApplicationDialog.java:405）
在se..client.jide.docking.JideLifecycleAdvisor.onPreWindowOpen（JideLifecycleAdvisor.java:47）
位于org.springframework.richclient.application.support.AbstractApplicationWindow.showPage（AbstractApplicationWindow.java:187）
位于org.springframework.richclient.application.support.AbstractApplicationWindow.showPage（AbstractApplicationWindow.java:158）
位于se..client.jide.docking.JideApplicationWindow.showPage（JideApplicationWindow.java:131）
位于org.springframework.richclient.application.application.openWindow（application.java:172）
位于org.springframework.richclient.application.application.start（application.java:254）
位于org.springframework.richclient.application.ApplicationLauncher$1.run（ApplicationLauncher.java:308）
在java.awt.event.InvocationEvent.dispatch（未知源）处
位于java.awt.EventQueue.dispatchEvent（未知源）
位于java.awt.EventDispatchThread.pumpOneEventForFilters（未知源）
位于java.awt.EventDispatchThread.pumpEventsForFilter（未知源）
位于java.awt.EventDispatchThread.pumpEventsForHierarchy（未知源）
位于java.awt.EventDispatchThread.pumpEvents（未知源）
位于java.awt.EventDispatchThread.pumpEvents（未知源）
位于java.awt.EventDispatchThread.run（未知源）
原因：java.lang.NullPointerException
访问sun.net.www.ParseUtil.toURI（未知来源）
位于sun.net.www.protocol.http.HttpURLConnection.plainConnect（未知源）
位于sun.net.www.protocol.http.HttpURLConnection.connect（未知源）
位于sun.net.www.protocol.http.HttpURLConnection.getOutputStream（未知源）
位于org.springframework.remoting.httpinvoker.SimpleHttpInvokerRequestExecutor.WriterRequestBody（SimpleHttpInvokerRequestExecutor.java:129）
位于org.springframework.remoting.httpinvoker.SimpleHttpI
2009-07-29 10:52:49,023 ERROR ([serverExporter]) [http-127.0.0.1-8080-1] Servlet.service() for servlet serverExporter threw exception
java.io.EOFException
    at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2279)
    at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2748)
    at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:780)
    at java.io.ObjectInputStream.<init>(ObjectInputStream.java:280)
    at org.springframework.core.ConfigurableObjectInputStream.<init>(ConfigurableObjectInputStream.java:47)
    at org.springframework.remoting.rmi.CodebaseAwareObjectInputStream.<init>(CodebaseAwareObjectInputStream.java:81)
    at org.springframework.remoting.rmi.RemoteInvocationSerializingExporter.createObjectInputStream(RemoteInvocationSerializingExporter.java:105)
    at org.springframework.remoting.httpinvoker.HttpInvokerServiceExporter.readRemoteInvocation(HttpInvokerServiceExporter.java:115)
    at org.springframework.remoting.httpinvoker.HttpInvokerServiceExporter.readRemoteInvocation(HttpInvokerServiceExporter.java:96)
    at org.springframework.remoting.httpinvoker.HttpInvokerServiceExporter.handleRequest(HttpInvokerServiceExporter.java:73)
    at org.springframework.web.context.support.HttpRequestHandlerServlet.service(HttpRequestHandlerServlet.java:65)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
    at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
    at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
    at java.lang.Thread.run(Thread.java:619)

    URL url = new URL("your_service_url");
    int i = url.openConnection().getInputStream().read();

Could not access HTTP invoker remote service
  at [http:/127.0.0.1:8080/<servlet-context>/<servlet-name>/Server]