Struts Problem Report

Struts has detected an unhandled exception:

Messages:

Stacktraces

java.lang.NullPointerException
    net.cartana.web.frontpage.interceptor.FrontPageLoginInterceptor.intercept(Unknown Source)
    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:245)
    org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)
    org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:575)
    org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:81)
    org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
    net.cartana.web.common.session.CookieSessionFilter.doFilter(Unknown Source)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
    net.cartana.web.common.filter.ParameterFilter.doFilter(Unknown Source)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
    org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
    org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:595)
    org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)
    org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)
    org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:341)
    org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799)
    org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861)
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455)
    org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    java.lang.Thread.run(Thread.java:745)