java.lang.ClassCastException: java.util.ArrayList cannot be cast to com.ssh.domain.Article

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HTTP Status 500 - java.util.ArrayList cannot be cast to com.ssh.domain.Articletype Exception reportmessage java.util.ArrayList cannot be cast to com.ssh.domain.Articledescription The server encountered an internal error that prevented it from fulfilling this request.exceptionjava.lang.ClassCastException: java.util.ArrayList cannot be cast to com.ssh.domain.Articlecom.ssh.DAO.impl.user.ArticleDaoImpl.getArticleByID(ArticleDaoImpl.java:48)com.ssh.service.impl.user.ArticleServiceImpl.getArticleByID(ArticleServiceImpl.java:32)com.ssh.action.user.ArticleAction.updateUI(ArticleAction.java:143)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)java.lang.reflect.Method.invoke(Method.java:597)com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:450)com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:289)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:252)com.ssh.util.LoginInterceptor.intercept(LoginInterceptor.java:27)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:167)com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:265)org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:138)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:239)com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:239)com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:191)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:73)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:91)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:252)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:161)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:193)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:189)com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:563)org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:78)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77)note The full stack trace of the root cause is available in the Apache Tomcat/7.0.32 logs.

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