java.lang.NullPointerException: This exception has no message.


Solutions on the web

Solution icon of zkoss
via ZK-Tracker by dennis, 1 year ago
This exception has no message.

Solution icon of zkoss
via ZK-Tracker by dennis, 1 year ago
This exception has no message.

Solution icon of zkoss
via ZK-Tracker by hawk, 1 year ago
This exception has no message.

Solution icon of zkoss
via ZK-Tracker by emorozovs, 1 year ago
This exception has no message.

Solution icon of zkoss
via ZK-Tracker by hawk, 1 year ago
This exception has no message.

Solution icon of zkoss
via ZK-Tracker by emorozovs, 1 year ago
This exception has no message.

Stack trace

java.lang.NullPointerException
	at org.zkoss.zul.Listbox.setSelectedIndex(Listbox.java:929)
	at org.zkoss.zul.Listbox.onListDataChange(Listbox.java:2531)
	at org.zkoss.zul.Listbox.access$17(Listbox.java:2521)
	at org.zkoss.zul.Listbox$4.onChange(Listbox.java:461)
	at org.zkoss.zul.AbstractListModel.fireEvent(AbstractListModel.java:61)
	at org.zkoss.zul.ListModelList.fireSelectionEvent(ListModelList.java:438)
	at org.zkoss.zul.AbstractListModel.addToSelection(AbstractListModel.java:130)
	at org.zkoss.zul.ListModelList.addSelection(ListModelList.java:445)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at bsh.Reflect.invokeMethod(Unknown Source)
	at bsh.Reflect.invokeObjectMethod(Unknown Source)
	at bsh.Name.invokeMethod(Unknown Source)
	at bsh.BSHMethodInvocation.eval(Unknown Source)
	at bsh.BSHPrimaryExpression.eval(Unknown Source)
	at bsh.BSHPrimaryExpression.eval(Unknown Source)
	at bsh.BSHBlock.evalBlock(Unknown Source)
	at bsh.BSHBlock.eval(Unknown Source)
	at bsh.BshMethod.invokeImpl(Unknown Source)
	at bsh.BshMethod.invoke(Unknown Source)
	at bsh.BshMethod.invoke(Unknown Source)
	at bsh.Name.invokeLocalMethod(Unknown Source)
	at bsh.Name.invokeMethod(Unknown Source)
	at bsh.BSHMethodInvocation.eval(Unknown Source)
	at bsh.BSHPrimaryExpression.eval(Unknown Source)
	at bsh.BSHPrimaryExpression.eval(Unknown Source)
	at bsh.Interpreter.eval(Unknown Source)
	at bsh.Interpreter.eval(Unknown Source)
	at org.zkoss.zk.scripting.bsh.BSHInterpreter.exec(BSHInterpreter.java:131)
	at org.zkoss.zk.scripting.util.GenericInterpreter.interpret(GenericInterpreter.java:328)
	at org.zkoss.zk.ui.impl.PageImpl.interpret(PageImpl.java:875)
	at org.zkoss.zk.ui.AbstractComponent.service(AbstractComponent.java:2701)
	at org.zkoss.zk.ui.AbstractComponent.service(AbstractComponent.java:2654)
	at org.zkoss.zk.ui.impl.EventProcessor.process(EventProcessor.java:136)
	at org.zkoss.zk.ui.impl.UiEngineImpl.processEvent(UiEngineImpl.java:1710)
	at org.zkoss.zk.ui.impl.UiEngineImpl.process(UiEngineImpl.java:1495)
	at org.zkoss.zk.ui.impl.UiEngineImpl.execUpdate(UiEngineImpl.java:1205)
	at org.zkoss.zk.au.http.DHtmlUpdateServlet.process(DHtmlUpdateServlet.java:583)
	at org.zkoss.zk.au.http.DHtmlUpdateServlet.doGet(DHtmlUpdateServlet.java:481)
	at org.zkoss.zk.au.http.DHtmlUpdateServlet.doPost(DHtmlUpdateServlet.java:489)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:401)
	at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
	at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
	at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
	at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
	at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
	at org.mortbay.jetty.Server.handle(Server.java:326)
	at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
	at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:945)
	at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:756)
	at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
	at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
	at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
	at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

Write tip

You have a different solution? A short tip here would help you and many other users who saw this issue last week.

Users with the same issue

You are the first who have seen this exception. Write a tip to help other users and build your expert profile.