.opensymphony.xwork2.defaultActionInvocation.invoke(defaultActionInvocation.java:248)
org.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)
org.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(defaultActionInvocation.java:248)
.opensymphony.xwork2.interceptor.ExceptionmappingInterceptor.intercept(ExceptionmappingInterceptor.java:187)
.opensymphony.xwork2.defaultActionInvocation.invoke(defaultActionInvocation.java:248)
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org.apache.struts2.impl.StrutsActionproxy.execute(StrutsActionproxy.java:52)
org.apache.struts2.dispatcher.dispatcher.serviceAction(dispatcher.java:485)
org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
org.apache.struts2.dispatcher.ng.filter.StrutsprepareAndExecuteFilter.doFilter(StrutsprepareAndExecuteFilter.java:91)
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note the full stack trace of the root cause is available in the Apache tomcat/7.0.62 logs.