javax.servlet.ServletException: java.lang.Exception: java.lang.NullPointerException

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java.lang.Exception: javax.faces.FacesException: Problem in renderResponse: Software caused connection abort: socket write error
javax.servlet.ServletException: java.lang.Exception: java.lang.NullPointerException
at com.icesoft.faces.webapp.http.servlet.MainServlet.service(MainServlet.java:158)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:630)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:535)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:472)
at com.liferay.portlet.PortletRequestDispatcherImpl.dispatch(PortletRequestDispatcherImpl.java:307)
at com.liferay.portlet.PortletRequestDispatcherImpl.include(PortletRequestDispatcherImpl.java:122)
at com.icesoft.faces.webapp.http.portlet.MainPortlet.doInclude(MainPortlet.java:127)
at com.icesoft.faces.webapp.http.portlet.MainPortlet.doView(MainPortlet.java:55)
at javax.portlet.GenericPortlet.doDispatch(GenericPortlet.java:328)

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