Rest Service returns nothing on keys and column fo

Question

I am working in the application in which I have implemented the search and passing the "searchKeys" in url by Rest Service xpage,

In fix pack 6 I get the results as expected but the same application i configured in a server with Feature Pack 8, the keys in the Rest service simple returns nothing and in Categorised view I update the Keys with Categorised column value which returns Null pointer .

if I tries to get the categorised columns results I get the error

{
    "code":500,
    "text":"Interner Fehler",
    "message":"",
    "type":"text",
    "data":"java.lang.NullPointerException\r\n\tat com.ibm.domino.services.rest.das.view.RestViewNavigatorFactory$ViewNavigatorNavigator.getTopLevelEntryCount(RestViewNavigatorFactory.java:644)\r\n\tat com.ibm.domino.services.rest.das.view.RestViewNavigatorFactory$SearchKeyNavigatorNavigator.getTopLevelEntryCount(RestViewNavigatorFactory.java:581)\r\n\tat com.ibm.domino.services.rest.das.view.RestViewItemFileService.renderServiceJSONGet(RestViewItemFileService.java:263)\r\n\tat com.ibm.domino.services.rest.das.view.RestViewItemFileService.renderService(RestViewItemFileService.java:77)\r\n\tat com.ibm.domino.services.HttpServiceEngine.processRequest(HttpServiceEngine.java:168)\r\n\tat com.ibm.xsp.extlib.component.rest.UIBaseRestService._processAjaxRequest(UIBaseRestService.java:257)\r\n\tat com.ibm.xsp.extlib.component.rest.UIBaseRestService.processAjaxRequest(UIBaseRestService.java:234)\r\n\tat com.ibm.xsp.util.AjaxUtilEx.renderAjaxPartialLifecycle(AjaxUtilEx.java:206)\r\n\tat com.ibm.xsp.webapp.FacesServletEx.renderAjaxPartial(FacesServletEx.java:249)\r\n\tat com.ibm.xsp.webapp.FacesServletEx.serviceAjaxPartialView(FacesServletEx.java:200)\r\n\tat com.ibm.xsp.webapp.FacesServletEx.serviceAjaxPartialViewSync(FacesServletEx.java:169)\r\n\tat com.ibm.xsp.webapp.FacesServletEx.serviceView(FacesServletEx.java:155)\r\n\tat com.ibm.xsp.webapp.FacesServlet.service(FacesServlet.java:159)\r\n\tat com.ibm.xsp.webapp.FacesServletEx.service(FacesServletEx.java:138)\r\n\tat com.ibm.xsp.webapp.DesignerFacesServlet.service(DesignerFacesServlet.java:103)\r\n\tat com.ibm.designer.runtime.domino.adapter.ComponentModule.invokeServlet(ComponentModule.java:588)\r\n\tat com.ibm.domino.xsp.module.nsf.NSFComponentModule.invokeServlet(NSFComponentModule.java:1335)\r\n\tat com.ibm.designer.runtime.domino.adapter.ComponentModule$AdapterInvoker.invokeServlet(ComponentModule.java:865)\r\n\tat com.ibm.designer.runtime.domino.adapter.ComponentModule$ServletInvoker.doService(ComponentModule.java:808)\r\n\tat com.ibm.designer.runtime.domino.adapter.ComponentModule.doService(ComponentModule.java:577)\r\n\tat com.ibm.domino.xsp.module.nsf.NSFComponentModule.doService(NSFComponentModule.java:1319)\r\n\tat com.ibm.domino.xsp.module.nsf.NSFService.doServiceInternal(NSFService.java:662)\r\n\tat com.ibm.domino.xsp.module.nsf.NSFService.doService(NSFService.java:482)\r\n\tat com.ibm.designer.runtime.domino.adapter.LCDEnvironment.doService(LCDEnvironment.java:357)\r\n\tat com.ibm.designer.runtime.domino.adapter.LCDEnvironment.service(LCDEnvironment.java:313)\r\n\tat com.ibm.domino.xsp.bridge.http.engine.XspCmdManager.service(XspCmdManager.java:272)\r\n"
}

In the case of search the Keys in Rest Service the error is simply Empty

  {
"@timestamp":"2017-12-11T12:24:41Z",
"@toplevelentries":1799,
"items":
[
]
}

Note : Same thing works with FP6 but Dont Works with FP8

Answer 1

I faced similar issue in my project. You get nullPointerException because the REST service returns nothing (Null). Hence, while loading the data (null data) in the REST service to grid the code that loads the data should handle the exception. Below code may help you on this.

listeners: {
    exception : function(proxy, response, operation) {
    operation.records = []; //set the value of exceptional data to blank.
}