JAXB 出现 GenericSignatureFormatError的错误

当我使用JAXB把JAVA对象转化成 XML 时，有时会出现下面的异常，请问如何解决这样的问题[10/30/09 9:45:55:689 CST] 00000020 WebApp        E   [Servlet Error]-[FlexRequestHandler]: java.lang.reflect.GenericSignatureFormatError
at sun.reflect.generics.parser.SignatureParser.error(SignatureParser.java:121)
at sun.reflect.generics.parser.SignatureParser.parseFormalParameters(SignatureParser.java:462)
at sun.reflect.generics.parser.SignatureParser.parseMethodTypeSignature(SignatureParser.java:454)
at sun.reflect.generics.parser.SignatureParser.parseMethodSig(SignatureParser.java:159)
at sun.reflect.generics.repository.ConstructorRepository.parse(ConstructorRepository.java:55)
at sun.reflect.generics.repository.ConstructorRepository.parse(ConstructorRepository.java:43)
at sun.reflect.generics.repository.AbstractRepository.<init>(AbstractRepository.java:74)
at sun.reflect.generics.repository.GenericDeclRepository.<init>(GenericDeclRepository.java:48)
at sun.reflect.generics.repository.ConstructorRepository.<init>(ConstructorRepository.java:51)
at sun.reflect.generics.repository.MethodRepository.<init>(MethodRepository.java:46)
at sun.reflect.generics.repository.MethodRepository.make(MethodRepository.java:59)
at java.lang.reflect.Method.getGenericInfo(Method.java:119)
at java.lang.reflect.Method.getGenericParameterTypes(Method.java:307)
at com.sun.xml.bind.v2.model.nav.ReflectionNavigator.getMethodParameters(ReflectionNavigator.java:289)
at com.sun.xml.bind.v2.model.nav.ReflectionNavigator.getMethodParameters(ReflectionNavigator.java:58)
at com.sun.xml.bind.v2.model.impl.ClassInfoImpl.collectGetterSetters(ClassInfoImpl.java:1002)
at com.sun.xml.bind.v2.model.impl.ClassInfoImpl.findGetterSetterProperties(ClassInfoImpl.java:905)
at com.sun.xml.bind.v2.model.impl.ClassInfoImpl.getProperties(ClassInfoImpl.java:298)
at com.sun.xml.bind.v2.model.impl.RuntimeClassInfoImpl.getProperties(RuntimeClassInfoImpl.java:174)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:243)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:98)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:79)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:209)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:93)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:79)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getTypeInfo(ModelBuilder.java:315)
at com.sun.xml.bind.v2.model.impl.TypeRefImpl.calcRef(TypeRefImpl.java:92)
at com.sun.xml.bind.v2.model.impl.TypeRefImpl.getTarget(TypeRefImpl.java:69)
at com.sun.xml.bind.v2.model.impl.RuntimeTypeRefImpl.getTarget(RuntimeTypeRefImpl.java:58)
at com.sun.xml.bind.v2.model.impl.RuntimeTypeRefImpl.getTarget(RuntimeTypeRefImpl.java:51)
at com.sun.xml.bind.v2.model.impl.ElementPropertyInfoImpl$1.get(ElementPropertyInfoImpl.java:74)
at com.sun.xml.bind.v2.model.impl.ElementPropertyInfoImpl$1.get(ElementPropertyInfoImpl.java:77)
at java.util.AbstractList$Itr.next(AbstractList.java:437)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:255)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:98)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:79)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getClassInfo(ModelBuilder.java:209)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:93)
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.getClassInfo(RuntimeModelBuilder.java:79)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getTypeInfo(ModelBuilder.java:315)
at com.sun.xml.bind.v2.model.impl.ModelBuilder.getTypeInfo(ModelBuilder.java:330)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:432)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:286)
at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:139)
at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:117)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:615)
at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:211)
at javax.xml.bind.ContextFinder.find(ContextFinder.java:372)
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:574)
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:522)
at com.ibm.gss.opex.util.jaxb.JAXBGenerator.JavaToXmlreturnString(JAXBGenerator.java:122)
at com.ibm.gss.opex.actions.FlexLoadingAction.process(FlexLoadingAction.java:76)
at com.ibm.gss.opex.controller.FlexRequestHandler.process(FlexRequestHandler.java:73)
at com.ibm.gss.opex.controller.FlexRequestHandler.doGet(FlexRequestHandler.java:40)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:966)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:478)
at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:463)
at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:92)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:744)
at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1433)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:93)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:465)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:394)
at com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpICLReadCallback.java:102)
at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:152)
at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:213)
at com.ibm.io.async.AbstractAsyncFuture.fireCompletionActions(AbstractAsyncFuture.java:195)
at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:136)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:194)
at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:741)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:863)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1510)