java.lang.NullPointerException

ZK-Tracker | emorozovs | 2 years ago
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  1. 0

    Listbox with paging. If dynamically in custom renderer call row.detach(), and then on client select last row, ZK throws java.lang.NullPointerException or java.lang.IndexOutOfBoundsException. Please see example: http://zkfiddle.org/sample/1esfv0m/41-Another-new-ZK-fiddle#source-3 1) java.lang.NullPointerException at org.zkoss.zul.Listbox.setSelectedIndex(Listbox.java:929) at org.zkoss.zul.Listbox.selectItem(Listbox.java:953) at org.zkoss.zul.Listbox.service(Listbox.java:3396) at org.zkoss.zk.ui.impl.DesktopImpl.service(DesktopImpl.java:699) at org.zkoss.zk.ui.impl.UiEngineImpl.execUpdate(UiEngineImpl.java:1193) at org.zkoss.zk.au.http.DHtmlUpdateServlet.process(DHtmlUpdateServlet.java:558) at org.zkoss.zk.au.http.DHtmlUpdateServlet.doGet(DHtmlUpdateServlet.java:456) at org.zkoss.zk.au.http.DHtmlUpdateServlet.doPost(DHtmlUpdateServlet.java:464) at javax.servlet.http.HttpServlet.service(HttpServlet.java:595) at javax.servlet.http.HttpServlet.service(HttpServlet.java:668) .. 2) java.lang.IndexOutOfBoundsException: Index: -1, Size: 3 at java.util.ArrayList.get(ArrayList.java:352) at org.zkoss.zul.ListModelList.getElementAt(ListModelList.java:150) at org.zkoss.zul.Listbox.service(Listbox.java:3423) at org.zkoss.zk.ui.impl.DesktopImpl.service(DesktopImpl.java:708) at org.zkoss.zk.ui.impl.UiEngineImpl.execUpdate(UiEngineImpl.java:1204) at org.zkoss.zk.au.http.DHtmlUpdateServlet.process(DHtmlUpdateServlet.java:601) at org.zkoss.zk.au.http.DHtmlUpdateServlet.doGet(DHtmlUpdateServlet.java:483) at org.zkoss.zk.au.http.DHtmlUpdateServlet.doPost(DHtmlUpdateServlet.java:492) at javax.servlet.http.HttpServlet.service(HttpServlet.java:595) at javax.servlet.http.HttpServlet.service(HttpServlet.java:668) ...

    ZK-Tracker | 2 years ago | emorozovs
    java.lang.NullPointerException
  2. 0

    Listbox with paging. If dynamically in custom renderer call row.detach(), and then on client select last row, ZK throws java.lang.NullPointerException or java.lang.IndexOutOfBoundsException. Please see example: http://zkfiddle.org/sample/1esfv0m/41-Another-new-ZK-fiddle#source-3 1) java.lang.NullPointerException at org.zkoss.zul.Listbox.setSelectedIndex(Listbox.java:929) at org.zkoss.zul.Listbox.selectItem(Listbox.java:953) at org.zkoss.zul.Listbox.service(Listbox.java:3396) at org.zkoss.zk.ui.impl.DesktopImpl.service(DesktopImpl.java:699) at org.zkoss.zk.ui.impl.UiEngineImpl.execUpdate(UiEngineImpl.java:1193) at org.zkoss.zk.au.http.DHtmlUpdateServlet.process(DHtmlUpdateServlet.java:558) at org.zkoss.zk.au.http.DHtmlUpdateServlet.doGet(DHtmlUpdateServlet.java:456) at org.zkoss.zk.au.http.DHtmlUpdateServlet.doPost(DHtmlUpdateServlet.java:464) at javax.servlet.http.HttpServlet.service(HttpServlet.java:595) at javax.servlet.http.HttpServlet.service(HttpServlet.java:668) .. 2) java.lang.IndexOutOfBoundsException: Index: -1, Size: 3 at java.util.ArrayList.get(ArrayList.java:352) at org.zkoss.zul.ListModelList.getElementAt(ListModelList.java:150) at org.zkoss.zul.Listbox.service(Listbox.java:3423) at org.zkoss.zk.ui.impl.DesktopImpl.service(DesktopImpl.java:708) at org.zkoss.zk.ui.impl.UiEngineImpl.execUpdate(UiEngineImpl.java:1204) at org.zkoss.zk.au.http.DHtmlUpdateServlet.process(DHtmlUpdateServlet.java:601) at org.zkoss.zk.au.http.DHtmlUpdateServlet.doGet(DHtmlUpdateServlet.java:483) at org.zkoss.zk.au.http.DHtmlUpdateServlet.doPost(DHtmlUpdateServlet.java:492) at javax.servlet.http.HttpServlet.service(HttpServlet.java:595) at javax.servlet.http.HttpServlet.service(HttpServlet.java:668) ...

    ZK-Tracker | 2 years ago | emorozovs
    java.lang.NullPointerException

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.zkoss.zul.Listbox.setSelectedIndex()
    2. ZK XUL Components
      Listbox.service
      1. org.zkoss.zul.Listbox.setSelectedIndex(Listbox.java:929)
      2. org.zkoss.zul.Listbox.selectItem(Listbox.java:953)
      3. org.zkoss.zul.Listbox.service(Listbox.java:3396)
      3 frames
    3. ZK Kernel
      DHtmlUpdateServlet.doPost
      1. org.zkoss.zk.ui.impl.DesktopImpl.service(DesktopImpl.java:699)
      2. org.zkoss.zk.ui.impl.UiEngineImpl.execUpdate(UiEngineImpl.java:1193)
      3. org.zkoss.zk.au.http.DHtmlUpdateServlet.process(DHtmlUpdateServlet.java:558)
      4. org.zkoss.zk.au.http.DHtmlUpdateServlet.doGet(DHtmlUpdateServlet.java:456)
      5. org.zkoss.zk.au.http.DHtmlUpdateServlet.doPost(DHtmlUpdateServlet.java:464)
      5 frames
    4. JavaServlet
      HttpServlet.service
      1. javax.servlet.http.HttpServlet.service(HttpServlet.java:595)
      2. javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
      2 frames