执行Tomcat下的WEB应用时，出现以下异常，希望高手GG们能够帮忙解决:

type Exception report

message Internal Server Error

description The server encountered an internal error (Internal Server Error) that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Servlet execution threw an exception
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1027)
at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1125)
at java.lang.Thread.run(Thread.java:534)


root cause

java.lang.Error: RPC Error 1 + 820
at COM.metaphasetech.util._XDRStream._skipRecord(_XDRStream.java:369)
at COM.metaphasetech.net._RPCClient._finishCall(_RPCClient.java:391)
at COM.metaphasetech.mtiaccess._UID._loadMTIAttributeInfo(_UID.java:289)
at COM.metaphasetech.mtiaccess._MTIAccess._loadMTIAttributeInfo(_MTIAccess.java:93)
at COM.metaphasetech.mot._MTIAttributeInfo._getAttributeInfo(_MTIAttributeInfo.java:603)
at com.sdrc._metaphase.enterprise.es_evista.base.EntityInfo._getMTIAttributeInfo(EntityInfo.java:856)
at com.sdrc._metaphase.enterprise.es_evista.base.EntityInfo.getMTIAttributeInfo(EntityInfo.java:844)
at com.sdrc._metaphase.enterprise.es_evista.base.EntityInfo.getType(EntityInfo.java:394)
at com.sdrc._metaphase.enterprise.es_evista.base.EntityInfo.setAttributeValue(EntityInfo.java:1225)
at com.sdrc._metaphase.enterprise.es_evista.base.EntityInfo.put(EntityInfo.java:1657)
at com.edsplm.tc.ent._wcc.worklist.worklistcontents.QueryWorkList.handleEnterpriseAction(QueryWorkList.java:156)
at com.edsplm.tc.ent.wcc.mwau.actioncomponents.enterprise.EnterpriseActionComponent.handleAction(EnterpriseActionComponent.java:74)
at com.edsplm.tc.ent._wcc.wae.ctrl.node.ActionComponentInterceptor.interceptRequest(ActionComponentInterceptor.java:187)
at com.edsplm.tc.ent._wcc.wae.ctrl.node.ResponseChainInterceptor.interceptRequest(ResponseChainInterceptor.java:153)
at com.edsplm.tc.ent._wcc.wae.ctrl.request.RequestContainerImpl.traverseRequest(RequestContainerImpl.java:335)
at com.edsplm.tc.ent._wcc.wae.ctrl.context.RequestDispatcher.contactInterceptor(RequestDispatcher.java:103)
at com.edsplm.tc.ent._wcc.wae.ctrl.context.RequestDispatcher.interceptRequest(RequestDispatcher.java:63)
at com.edsplm.tc.ent._wcc.wae.ctrl.context.RequestDispatcher.processRequestContainer(RequestDispatcher.java:37)
at com.edsplm.tc.ent._wcc.wae.ctrl.context.ControllerContextImpl.processRequest(ControllerContextImpl.java:147)
at com.edsplm.tc.ent._wcc.wae.ctrl.context.RequestInjector.processRequest(RequestInjector.java:43)
at com.sdrc._wae.ctrl.Controller.handleRequest(Controller.java:130)
at com.sdrc._wae.ctrl.Controller.doPost(Controller.java:101)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2347)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1027)
at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1125)
at java.lang.Thread.run(Thread.java:534)