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Exception Stack trace: class org.apache.jasper.JasperException - java.lang.NullPointerException: Cannot invoke "java.util.List.iterator()" because "allSearchPage" is null - An exception occurred processing [seo/offer/offer_index.jsp] at line [25] 22: OfferPageBlock offers= SearchPageBean.getSearchPageOfferBlock(searchPage); 23: 24: JSONArray offerArray = new JSONArray(); 25: for(SearchPage sp:allSearchPage){ 26: JSONObject offer = new JSONObject(); 27: offer.put("searchText", StringUtility.encodeURLFragment(sp.getSearchText())); 28: offer.put("productType", sp.getProductType().name()); Stacktrace: org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:610) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:499) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:379) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:327) javax.servlet.http.HttpServlet.service(HttpServlet.java:623) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:209) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153) org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:661) org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:425) org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:357) org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:294) com.eos.b2c.ui.navigation.PagesNavigation.doPost(PagesNavigation.java:939) com.eos.b2c.ui.navigation.PagesNavigation.doGet(PagesNavigation.java:242) javax.servlet.http.HttpServlet.service(HttpServlet.java:529) javax.servlet.http.HttpServlet.service(HttpServlet.java:623) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:209) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153) com.eos.accounts.UserManagerFilter.doFilter(UserManagerFilter.java:1061) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153) org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:168) org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:481) org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:130) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93) org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:765) org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:670) org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:390) org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:928) org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1794) org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.base/java.lang.Thread.run(Thread.java:833)