500

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系统执行发生错误,信息描述如下:
错误状态代码是:500
错误发生页面是:/singer/9
错误信息:org.apache.shiro.cache.CacheException: java.lang.NullPointerException
错误堆栈信息:
  • org.apache.shiro.web.servlet.AdviceFilter.cleanup(AdviceFilter.java:196)
  • org.apache.shiro.web.servlet.AdviceFilter.doFilterInternal(AdviceFilter.java:148)
  • org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
  • org.apache.shiro.web.servlet.ProxiedFilterChain.doFilter(ProxiedFilterChain.java:66)
  • org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
  • org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
  • org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
  • org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
  • org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383)
  • org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
  • org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
  • org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
  • org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262)
  • org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
  • org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
  • org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121)
  • org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  • org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
  • org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
  • org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
  • org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
  • org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
  • org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
  • org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
  • org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
  • org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
  • org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
  • org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
  • org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
  • org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
  • java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
  • java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
  • org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
  • java.lang.Thread.run(Thread.java:748)