com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)

com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263)

com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:243)

org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)

org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)

com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

com.alibaba.fastjson.serializer.SerializeWriter.writeStringWithDoubleQuote(SerializeWriter.java:868)

com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:176)

com.alibaba.fastjson.serializer.JSONSerializer.write(JSONSerializer.java:369)