nsymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

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

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

 .opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)

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

 .opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)

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

.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267)

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

 .opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:142)

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

 .opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:166)

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

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

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

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

.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)

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

 .opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:190)

 .opensymphony.xwork2.DefaultActionInvocation.invoke(Default