初始化metro webservice客户端时出错

由于几周以来我们的外部测试环境出现了一些问题（不由我们操作）。我们的web应用程序连接到一个soap web服务。初始化metro webservice客户端时出错

我们使用：

地铁2.1.1为WebService客户
的java-1.5.0-IBM-1.5.0.12.4安装在测试环境。
Tomcat的版本：5.5.27

第一次尝试初始化此环境中的客户端，我们得到了以下异常（只有在这个环境）：

java.lang.ExceptionInInitializerError 
    at java.lang.J9VMInternals.initialize(J9VMInternals.java:218) 
    at javax.xml.ws.Service.<init>(Service.java:57) 
    at com.xxx.xxx.xxx.xxxy.client.MyServiceRequestProvider_Service.<init>(MyServiceRequestProvider_Service.java:50) 
    at com.xxx.xxx.client.MyServiceRequester.<init>(MyServiceRequester.java:63) 
    at com.xxx.xxx.action.CheckAction.execute(CheckAction.java:120) 
    at com.xxx.xxx.webservice.validators.ApplicationValidatorImpl.validateCheck(ApplicationValidatorImpl.java:403) 
    at com.xxx.xxx.webservice.validators.ApplicationValidatorImpl$$EnhancerByGuice$$55e5e7ad.CGLIB$validateCheck$6(<generated>) 
    at com.xxx.xxx.webservice.validators.ApplicationValidatorImpl$$EnhancerByGuice$$55e5e7ad$$FastClassByGuice$$380e5720.invoke(<generated>) 
    at com.google.inject.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:187) 
    at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66) 
    at com.xxx.xxx.webservice.guice.interceptor.ValidationErrorInterceptor.invoke(ValidationErrorInterceptor.java:21) 
    at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66) 
    at com.xxx.xxx.webservice.guice.interceptor.PersistenzInterceptor.invoke(PersistenzInterceptor.java:35) 
    at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66) 
    at com.google.inject.InterceptorStackCallback.intercept(InterceptorStackCallback.java:45) 
    at com.xxx.xxx.webservice.validators.ApplicationValidatorImpl$$EnhancerByGuice$$55e5e7ad.validateCheck(<generated>) 
    at com.xxx.xxx.webservice.endpoint.xxxWS.order(xxxWS.java:99) 
    at com.xxx.xxx.webservice.endpoint.xxxWS$$EnhancerByGuice$$3bd5ffaf.CGLIB$order$1(<generated>) 
    at com.xxx.xxx.webservice.endpoint.xxxWS$$EnhancerByGuice$$3bd5ffaf$$FastClassByGuice$$806bc0a0.invoke(<generated>) 
    at com.google.inject.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:187) 
    at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66) 
    at com.xxx.xxx.webservice.guice.interceptor.RsvAgeManipulatorInterceptor.invoke(RsvAgeManipulatorInterceptor.java:95) 
    at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66) 
    at com.xxx.xxx.webservice.guice.interceptor.ValueConverterInterceptor.invoke(ValueConverterInterceptor.java:101) 
    at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66) 
    at com.xxx.xxx.webservice.guice.interceptor.DataValidationInterceptor.invoke(DataValidationInterceptor.java:31) 
    at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66) 
    at com.xxx.xxx.webservice.guice.interceptor.UserValidationInterceptor.invoke(UserValidationInterceptor.java:36) 
    at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66) 
    at com.xxx.xxx.webservice.guice.interceptor.SessionInitializerInterceptor.invoke(SessionInitializerInterceptor.java:65) 
    at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66) 
    at com.google.inject.InterceptorStackCallback.intercept(InterceptorStackCallback.java:45) 
    at com.xxx.xxx.webservice.endpoint.xxxWS$$EnhancerByGuice$$3bd5ffaf.order(<generated>) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:618) 
    at com.sun.xml.ws.api.server.InstanceResolver$1.invoke(InstanceResolver.java:250) 
    at com.sun.xml.ws.server.InvokerTube$2.invoke(InvokerTube.java:150) 
    at com.sun.xml.ws.server.sei.EndpointMethodHandler.invoke(EndpointMethodHandler.java:261) 
    at com.sun.xml.ws.server.sei.SEIInvokerTube.processRequest(SEIInvokerTube.java:100) 
    at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:641) 
    at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:600) 
    at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:585) 
    at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:482) 
    at com.sun.xml.ws.server.WSEndpointImpl$2.process(WSEndpointImpl.java:314) 
    at com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:608) 
    at com.sun.xml.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:259) 
    at com.sun.xml.ws.transport.http.servlet.ServletAdapter.invokeAsync(ServletAdapter.java:207) 
    at com.sun.xml.ws.transport.http.servlet.WSServletDelegate.doGet(WSServletDelegate.java:159) 
    at com.sun.xml.ws.transport.http.servlet.WSServletDelegate.doPost(WSServletDelegate.java:194) 
    at com.sun.xml.ws.transport.http.servlet.WSServlet.doPost(WSServlet.java:80) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151) 
    at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200) 
    at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291) 
    at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:775) 
    at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:704) 
    at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:897) 
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685) 
    at java.lang.Thread.run(Thread.java:811) 
Caused by: java.lang.SecurityException: java.util.ServiceLoader - protected system package 'java.util' 
    at java.lang.ClassLoader.checkClassName(ClassLoader.java:213) 
    at java.lang.ClassLoader.defineClass(ClassLoader.java:255) 
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:151) 
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:600) 
    at java.net.URLClassLoader.access$400(URLClassLoader.java:124) 
    at java.net.URLClassLoader$ClassFinder.run(URLClassLoader.java:1055) 
    at java.security.AccessController.doPrivileged(AccessController.java:274) 
    at java.net.URLClassLoader.findClass(URLClassLoader.java:492) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:640) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:632) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:606) 
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1346) 
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1205) 
    at java.lang.Class.forNameImpl(Native Method) 
    at java.lang.Class.forName(Class.java:130) 
    at javax.xml.ws.spi.Provider.<clinit>(Provider.java:55) 
    at java.lang.J9VMInternals.initializeImpl(Native Method) 
    at java.lang.J9VMInternals.initialize(J9VMInternals.java:196) 
    ... 68 more

进一步尝试初始化此客户端会导致：

2012-09-26 11:34:56,016 ERROR [TP-Processor7] com.xxx.xxx.client.MyServiceRequester#<init>(65): Error initialising MyServiceRequestProvider_Service 
java.lang.NoClassDefFoundError: javax.xml.ws.spi.Provider (initialization failure) 
at java.lang.J9VMInternals.initialize(J9VMInternals.java:134) 
at javax.xml.ws.Service.<init>(Service.java:57) 
...

看起来有一些安全问题Metro提供者类中的用户。我认为以下剪断地铁的类javax.xml.ws.spi.Provider的是失败的源头：

static { 
Method tLoadMethod = null; 
Method tIteratorMethod = null; 
try { 
    Class<?> clazz = Class.forName("java.util.ServiceLoader"); 
    tLoadMethod = clazz.getMethod("load", Class.class); 
    tIteratorMethod = clazz.getMethod("iterator"); 
} catch(ClassNotFoundException ce) { 
    // Running on Java SE 5 
} catch(NoSuchMethodException ne) { 
    // Shouldn't happen 
} 
loadMethod = tLoadMethod; 
iteratorMethod = tIteratorMethod;

}

看来，而不是抛出一个ClassNotFoundException的类加载器抛出一个SecurityException，静态初始化器没有捕获到这个异常。

这种行为的原因是什么（一些策略设置？）以及我们如何防止这种行为。该应用程序正在我们的本地测试环境中运行，并且也在外部环境中运行。外部供应商拒绝任何环境变化。这是IBM-JDK特有的行为吗？

编辑：

我发现，在JDK 5.0 API类java.security.SecureClassLoader的以下内容：

SecurityException - 如果试图将该类添加到包包含由不同于此类的证书集签署的类，或者如果类名以 “java。”开头。

但是这不会发生在tomcat上运行的所有Metro客户端吗？

编辑：

非常感谢你的建议！实际上，类路径中存在JDK 1.6 rt.jar的路径。因此ServiceLoader类被找到，但不允许在Provider中加载。

来源

2012-09-26 buddha089

我认为我们需要看到更多的代码。如果您为您的服务方法提供了构造函数，这将会很有帮助。由于您的异常的部分原因是抱怨java.util.ServiceLoader不属于JDK5。这是在Java6中引入的。是否有可能用Java6/7开发了这个功能，现在看到了错过匹配？ – Sean

也可以发布你的classpath用来启动服务器吗？如果你有额外的引用rt.jar，classes.jar，你也可以导致受保护的系统异常 – Sean

感谢肖恩，

有实际上是在classpath中，JDK 1.6的rt.jar的路径。因此ServiceLoader类被找到，但不允许在Provider中加载。

来源

2013-01-21 11:03:32 buddha089

初始化metro webservice客户端时出错

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