struts2.interceptor.terceptor.intercept(terceptor.java:75) com.opensyctioninvocation.invoke(defaultactioninvocation.java:248) org.apache.struts2.interceptor.checkboxinterceptor.intercept(checkboxinterceptor.java:94) com.opensyctioninvocation.invoke(defaultactioninvocation.java:248) org.apache.struts2.interceptor.