Spring mvc SpringAOP AspectJ初始化的super.instance变量发现为null NPE

我试图将方面集成到通过XML模式配置的旧的整体式Spring MVC应用程序中。 Spring AOP通过

&

委托bean模式定义&AOP配置。已放置在同一架构上下文定义文件中

分发NPE的实例变量在委托的父抽象类中声明，它的修饰符是受保护的默认访问器

应用的方面建议是@Before、

@Before（“execution（*c.x.at.movement.webservice.WsVerifyTxn.process（..）”）

，以及建议中的简单日志语句

如果没有禁用SpringAOP AspectJ，我就能够在没有任何错误场景的情况下执行流

没有将place super.variable分配给null

如果有人能指点或建议让我摆脱困境，我将不胜感激

下面是三个堆栈跟踪供查看

1>>错误堆栈跟踪

c.x.a.c.transaction.PersistableTxn.retrieveData（@664）：执行uri的业务委托控制器时出错'/snippet/verify':
java.lang.NullPointerException
位于c.x.a.c.transaction.PersistableTxn.retrieveData（PersistableTxn.java:664）
位于c.x.a.c.transaction.PersistableTxn.getTxnHistory（PersistableTxn.java:891）
在c.x.a.c.transaction.PersistableTxn.finalize（PersistableTxn.java:562）
在c.x.at.movement.BaseDelegate.finalize（BaseDelegate.java:257）
在c.x.at.movement.BaseDelegate$$FastClassByCGLIB$$cbb13d00_2.invoke（）处
net.sf.cglib.proxy.MethodProxy.invoke（MethodProxy.java:191）
位于org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint（Cglib2AopProxy.java:688）
在org.springframework.aop.framework.ReflectiveMethodInvocation.procedue（ReflectiveMethodInvocation.java:150）上
位于org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke（ExposeInvocationInterceptor.java:89）
位于org.springframework.aop.framework.ReflectiveMethodInvocation.procedue（ReflectiveMethodInvocation.java:172）
位于org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept（Cglib2AopProxy.java:621）
位于c.x.at.movement.webservice.WsVerifyTxn$$enhancerbyglib$$5ee08d0e.finalize（）
位于c.x.a.c.businessdelegate.PersistableBusinessDelegate.postProcess（PersistableBusinessDelegate.java:118）
在c.x.a.c.businessdelegate.BusinessDelegateAdapter.execute（BusinessDelegateAdapter.java:297）
位于c.x.a.c.businessdelegate.spring.BusinessDelegateController.HandlerRequestInternal（BusinessDelegateController.java:175）
位于org.springframework.web.servlet.mvc.AbstractController.HandlerRequest（AbstractController.java:153）
位于org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle（SimpleControllerHandlerAdapter.java:48）
位于org.springframework.web.servlet.DispatcherServlet.doDispatch（DispatcherServlet.java:790）
位于org.springframework.web.servlet.DispatcherServlet.doService（DispatcherServlet.java:719）
位于org.springframework.web.servlet.FrameworkServlet.processRequest（FrameworkServlet.java:644）
位于org.springframework.web.servlet.FrameworkServlet.doPost（FrameworkServlet.java:560）
位于javax.servlet.http.HttpServlet.service（HttpServlet.java:646）
位于javax.servlet.http.HttpServlet.service（HttpServlet.java:727）
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:303）
位于org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:208）
位于org.apache.tomcat.websocket.server.WsFilter.doFilter（WsFilter.java:52）
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:241）
位于org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:208）
位于c.x.commons.session.servlet.SSMCFilter.doFilter（SSMCFilter.java:79）
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:241）
位于org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:208）
位于c.x.commons.security.auth.xAuthFilter$\u filter\u action.run（xAuthFilter.java:78）
位于java.security.AccessController.doPrivileged（本机方法）
位于javax.security.auth.Subject.doAsPrivileged（Subject.java:536）
位于c.x.commons.util.j2ee.J2EESubject传播rnoop.doAsPrivileged（J2EESubject.java:80）
位于c.x.commons.security.auth.xAuthFilter.doFilter（xAuthFilter.java:154）
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:241）
位于org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:208）
位于c.x.commons.cs203.servlet.CS203CoreServletFilter.doFilter（CS203CoreServletFilter.java:86）
位于org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate（DelegatingFilterProxy.java:237）
位于org.springframework.web.filter.DelegatingFilterProxy.doFilter（DelegatingFilterProxy.java:167）
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:241）
位于org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:208）
位于c.x.a.c.model.accountinfo.filter.CacheFilter.doFilter（CacheFilter.java:53）
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:241）
位于org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:208）
位于org.apache.catalina.core.StandardWrapperValve.invoke（StandardWrapperValve.java:220）
位于org.apache.catalina.core.StandardContextValve.invoke（StandardContextValve.java:122）
位于org.apache.catalina.authenticator.AuthenticatorBase.invoke（AuthenticatorBase.java:503）
位于org.apache.catalina.core.StandardHostValve.invoke（StandardHostValve.java:170）
位于org.apache.catalina.valves.ErrorReportValve.invoke（ErrorReportValve.java:103）
位于org.apache.catalina.valves.AccessLogValve.invoke（AccessLogValve.java:950）
A.
c.x.a.c.transaction.PersistableTxn.retrieveData(@664): Error executing Business Delegate Controller for uri '/snippet/verify': 
java.lang.NullPointerException
    at c.x.a.c.transaction.PersistableTxn.retrieveData(PersistableTxn.java:664)
    at c.x.a.c.transaction.PersistableTxn.getTxnHistory(PersistableTxn.java:891)
    at c.x.a.c.transaction.PersistableTxn.finalize(PersistableTxn.java:562)
    at c.x.at.movement.BaseDelegate.finalize(BaseDelegate.java:257)
    at c.x.at.movement.BaseDelegate$$FastClassByCGLIB$$cbb13d00_2.invoke(<generated>)
    at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
    at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:688)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:621)
    at c.x.at.movement.webservice.WsVerifyTxn$$EnhancerByCGLIB$$5ee08d0e.finalize(<generated>)
    at c.x.a.c.businessdelegate.PersistableBusinessDelegate.postProcess(PersistableBusinessDelegate.java:118)
    at c.x.a.c.businessdelegate.BusinessDelegateAdapter.execute(BusinessDelegateAdapter.java:297)
    at c.x.a.c.businessdelegate.spring.BusinessDelegateController.handleRequestInternal(BusinessDelegateController.java:175)
    at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
    at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:646)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at c.x.commons.session.servlet.SSMCFilter.doFilter(SSMCFilter.java:79)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at c.x.commons.security.auth.xAuthFilter$_filter_action.run(xAuthFilter.java:78)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAsPrivileged(Subject.java:536)
    at c.x.commons.util.j2ee.J2EESubjectPropagaterNoOp.doAsPrivileged(J2EESubject.java:80)
    at c.x.commons.security.auth.xAuthFilter.doFilter(xAuthFilter.java:154)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at c.x.commons.cs203.servlet.CS203CoreServletFilter.doFilter(CS203CoreServletFilter.java:86)
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237)
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at c.x.a.c.model.accountinfo.filter.CacheFilter.doFilter(CacheFilter.java:53)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:722) 

Daemon Thread [http-bio-9080-exec-2] (Suspended (breakpoint at line 196 in BusinessDelegate))   
    owns: SocketWrapper<E>  (id=363)    
    WsVerifyTxn$$EnhancerByCGLIB$$eeedc57b(BusinessDelegate).preProcess(xContext, Object) line: 196 
    WsVerifyTxn$$EnhancerByCGLIB$$eeedc57b(PersistableBusinessDelegate).preProcess(xContext, Object) line: 34   
    BusinessDelegateAdapter.execute(RequestContext) line: 267   
    BusinessDelegateController.handleRequestInternal(HttpServletRequest, HttpServletResponse) line: 175 
    BusinessDelegateController(AbstractController).handleRequest(HttpServletRequest, HttpServletResponse) line: 153 
    SimpleControllerHandlerAdapter.handle(HttpServletRequest, HttpServletResponse, Object) line: 48 
    DispatcherServlet.doDispatch(HttpServletRequest, HttpServletResponse) line: 790 
    DispatcherServlet.doService(HttpServletRequest, HttpServletResponse) line: 719  
    DispatcherServlet(FrameworkServlet).processRequest(HttpServletRequest, HttpServletResponse) line: 644   
    DispatcherServlet(FrameworkServlet).doPost(HttpServletRequest, HttpServletResponse) line: 560   
    DispatcherServlet(HttpServlet).service(HttpServletRequest, HttpServletResponse) line: 646   
    DispatcherServlet(HttpServlet).service(ServletRequest, ServletResponse) line: 727   
    ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line: 303  
    ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 208  
    WsFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line: 52    
    ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line: 241  
    ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 208  
    SSMCFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line: 79  
    ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line: 241  
    ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 208  
    xAuthFilter$_filter_action.run() line: 78   
    AccessController.doPrivileged(PrivilegedExceptionAction<T>, AccessControlContext) line: not available [native method]   
    Subject.doAsPrivileged(Subject, PrivilegedExceptionAction<T>, AccessControlContext) line: 536   
    J2EESubjectPropagaterNoOp.doAsPrivileged(Subject, PrivilegedExceptionAction, AccessControlContext) line: 80 
    xAuthFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line: 154    
    ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line: 241  
    ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 208  
    CS203CoreServletFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line: 86  
    DelegatingFilterProxy.invokeDelegate(Filter, ServletRequest, ServletResponse, FilterChain) line: 237    
    DelegatingFilterProxy.doFilter(ServletRequest, ServletResponse, FilterChain) line: 167  
    ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line: 241  
    ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 208  
    CacheFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line: 53 
    ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line: 241  
    ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 208  
    StandardWrapperValve.invoke(Request, Response) line: 220    
    StandardContextValve.invoke(Request, Response) line: 122    
    NonLoginAuthenticator(AuthenticatorBase).invoke(Request, Response) line: 503    
    StandardHostValve.invoke(Request, Response) line: 170   
    ErrorReportValve.invoke(Request, Response) line: 103    
    AccessLogValve.invoke(Request, Response) line: 950  
    StandardEngineValve.invoke(Request, Response) line: 116 
    CoyoteAdapter.service(Request, Response) line: 421  
    Http11Processor(AbstractHttp11Processor<S>).process(SocketWrapper<S>) line: 1070    
    Http11Protocol$Http11ConnectionHandler(AbstractProtocol$AbstractConnectionHandler<S,P>).process(SocketWrapper<S>, SocketStatus) line: 611   
    JIoEndpoint$SocketProcessor.run() line: 314 
    ThreadPoolExecutor(ThreadPoolExecutor).runWorker(ThreadPoolExecutor$Worker) line: 1110  
    ThreadPoolExecutor$Worker.run() line: 603   
    TaskThread$WrappingRunnable.run() line: 61  
    TaskThread(Thread).run() line: 722  

Daemon Thread [http-bio-9080-exec-2] (Suspended (breakpoint at line 664 in PersistableTxn)) 
    owns: SocketWrapper<E>  (id=363)    
    WsVerifyTxn(PersistableTxn).retrieveData(String) line: 664  
    WsVerifyTxn(PersistableTxn).getTxnHistory() line: 891   
    WsVerifyTxn(PersistableTxn).finalize(Persistable, xContext, xModelOutput) line: 562 
    WsVerifyTxn(BaseDelegate).finalize(Persistable, xContext, xModelOutput) line: 257   
    BaseDelegate$$FastClassByCGLIB$$cbb13d00_2.invoke(int, Object, Object[]) line: not available    
    MethodProxy.invoke(Object, Object[]) line: 191  
    Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint() line: 688    
    Cglib2AopProxy$CglibMethodInvocation(ReflectiveMethodInvocation).proceed() line: 150    
    ExposeInvocationInterceptor.invoke(MethodInvocation) line: 89   
    Cglib2AopProxy$CglibMethodInvocation(ReflectiveMethodInvocation).proceed() line: 172    
    Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Object, Method, Object[], MethodProxy) line: 621 
    WsVerifyTxn$$EnhancerByCGLIB$$eeedc57b.finalize(Persistable, xContext, xModelOutput) line: not available    
    WsVerifyTxn$$EnhancerByCGLIB$$eeedc57b(PersistableBusinessDelegate).postProcess(xContext, xModelOutput) line: 118   
    BusinessDelegateAdapter.execute(RequestContext) line: 297   
    BusinessDelegateController.handleRequestInternal(HttpServletRequest, HttpServletResponse) line: 175 
    BusinessDelegateController(AbstractController).handleRequest(HttpServletRequest, HttpServletResponse) line: 153 
    SimpleControllerHandlerAdapter.handle(HttpServletRequest, HttpServletResponse, Object) line: 48 
    DispatcherServlet.doDispatch(HttpServletRequest, HttpServletResponse) line: 790 
    DispatcherServlet.doService(HttpServletRequest, HttpServletResponse) line: 719  
    DispatcherServlet(FrameworkServlet).processRequest(HttpServletRequest, HttpServletResponse) line: 644   
    DispatcherServlet(FrameworkServlet).doPost(HttpServletRequest, HttpServletResponse) line: 560   
    DispatcherServlet(HttpServlet).service(HttpServletRequest, HttpServletResponse) line: 646   
    DispatcherServlet(HttpServlet).service(ServletRequest, ServletResponse) line: 727   
    ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line: 303  
    ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 208  
    WsFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line: 52    
    ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line: 241  
    ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 208  
    SSMCFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line: 79  
    ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line: 241  
    ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 208  
    xAuthFilter$_filter_action.run() line: 78   
    AccessController.doPrivileged(PrivilegedExceptionAction<T>, AccessControlContext) line: not available [native method]   
    Subject.doAsPrivileged(Subject, PrivilegedExceptionAction<T>, AccessControlContext) line: 536   
    J2EESubjectPropagaterNoOp.doAsPrivileged(Subject, PrivilegedExceptionAction, AccessControlContext) line: 80 
    xAuthFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line: 154    
    ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line: 241  
    ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 208  
    CS203CoreServletFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line: 86  
    DelegatingFilterProxy.invokeDelegate(Filter, ServletRequest, ServletResponse, FilterChain) line: 237    
    DelegatingFilterProxy.doFilter(ServletRequest, ServletResponse, FilterChain) line: 167  
    ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line: 241  
    ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 208  
    CacheFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line: 53 
    ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line: 241  
    ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 208  
    StandardWrapperValve.invoke(Request, Response) line: 220    
    StandardContextValve.invoke(Request, Response) line: 122    
    NonLoginAuthenticator(AuthenticatorBase).invoke(Request, Response) line: 503    
    StandardHostValve.invoke(Request, Response) line: 170   
    ErrorReportValve.invoke(Request, Response) line: 103    
    AccessLogValve.invoke(Request, Response) line: 950  
    StandardEngineValve.invoke(Request, Response) line: 116 
    CoyoteAdapter.service(Request, Response) line: 421  
    Http11Processor(AbstractHttp11Processor<S>).process(SocketWrapper<S>) line: 1070    
    Http11Protocol$Http11ConnectionHandler(AbstractProtocol$AbstractConnectionHandler<S,P>).process(SocketWrapper<S>, SocketStatus) line: 611   
    JIoEndpoint$SocketProcessor.run() line: 314 
    ThreadPoolExecutor(ThreadPoolExecutor).runWorker(ThreadPoolExecutor$Worker) line: 1110  
    ThreadPoolExecutor$Worker.run() line: 603   
    TaskThread$WrappingRunnable.run() line: 61  
    TaskThread(Thread).run() line: 722