java.lang.NullPointerException

ZK-Tracker | jimmyshiau | 4 years ago
  1. 0

    testVM-add-zul.zul {code:xml} <zk> <div id="cnt"></div> <button label="append page"> <attribute name="onClick"><![CDATA[ Div div = new Div(); Executions.createComponents("testVM-include-1.zul", div, null); cnt.appendChild(div); ]]></attribute> </button> </zk> {code} testVM-include-1.zul {code:xml} <zk> <zscript><![CDATA[ class MyVM2 { } ]]></zscript> <window apply="org.zkoss.bind.BindComposer" viewModel="@id('vm') @init('MyVM2')"> </window> </zk> {code} {code:java} SEVERE: >>org.zkoss.zk.ui.UiException: null >>java.lang.NullPointerException >> at org.zkoss.bind.BindComposer.initViewModel(BindComposer.java:229) >> at org.zkoss.bind.BindComposer.doBeforeComposeChildren(BindComposer.java:142) >> at org.zkoss.zk.ui.impl.UiEngineImpl.doBeforeComposeChildren(UiEngineImpl.java:875) >> at org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild0(UiEngineImpl.java:814) >> at org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild(UiEngineImpl.java:771) >> at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate0(UiEngineImpl.java:680) >> at org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild(UiEngineImpl.java:742) >> at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate0(UiEngineImpl.java:702) >> at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate(UiEngineImpl.java:644) >> at org.zkoss.zk.ui.impl.UiEngineImpl.createComponents(UiEngineImpl.java:1025) >> at org.zkoss.zk.ui.impl.AbstractExecution.createComponents0(AbstractExecution.java:246) >> at org.zkoss.zk.ui.impl.AbstractExecution.createComponents(AbstractExecution.java:238) >> at org.zkoss.zk.ui.Executions.createComponents(Executions.java:179) >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) >> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) >> at java.lang.reflect.Method.invoke(Unknown Source) >> at bsh.Reflect.invokeMethod(Unknown Source) >> at bsh.Reflect.invokeStaticMethod(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) {code}

    ZK-Tracker | 4 years ago | jimmyshiau
    java.lang.NullPointerException
  2. 0

    testVM-add-zul.zul {code:xml} <zk> <div id="cnt"></div> <button label="append page"> <attribute name="onClick"><![CDATA[ Div div = new Div(); Executions.createComponents("testVM-include-1.zul", div, null); cnt.appendChild(div); ]]></attribute> </button> </zk> {code} testVM-include-1.zul {code:xml} <zk> <zscript><![CDATA[ class MyVM2 { } ]]></zscript> <window apply="org.zkoss.bind.BindComposer" viewModel="@id('vm') @init('MyVM2')"> </window> </zk> {code} {code:java} SEVERE: >>org.zkoss.zk.ui.UiException: null >>java.lang.NullPointerException >> at org.zkoss.bind.BindComposer.initViewModel(BindComposer.java:229) >> at org.zkoss.bind.BindComposer.doBeforeComposeChildren(BindComposer.java:142) >> at org.zkoss.zk.ui.impl.UiEngineImpl.doBeforeComposeChildren(UiEngineImpl.java:875) >> at org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild0(UiEngineImpl.java:814) >> at org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild(UiEngineImpl.java:771) >> at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate0(UiEngineImpl.java:680) >> at org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild(UiEngineImpl.java:742) >> at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate0(UiEngineImpl.java:702) >> at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate(UiEngineImpl.java:644) >> at org.zkoss.zk.ui.impl.UiEngineImpl.createComponents(UiEngineImpl.java:1025) >> at org.zkoss.zk.ui.impl.AbstractExecution.createComponents0(AbstractExecution.java:246) >> at org.zkoss.zk.ui.impl.AbstractExecution.createComponents(AbstractExecution.java:238) >> at org.zkoss.zk.ui.Executions.createComponents(Executions.java:179) >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) >> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) >> at java.lang.reflect.Method.invoke(Unknown Source) >> at bsh.Reflect.invokeMethod(Unknown Source) >> at bsh.Reflect.invokeStaticMethod(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) {code}

    ZK-Tracker | 4 years ago | jimmyshiau
    java.lang.NullPointerException
  3. 0
    Assign onCickListener to imageView in ExpandableListView inside getChildView.
  4. Speed up your debug routine!

    Automated exception search integrated into your IDE

  5. 0
    The Fragment was destroyed, and getActivity() returned null. Don't destroy the Fragment.
  6. 0

    Android: Saving Map State in Google map

    Stack Overflow | 1 year ago | Junie Negentien
    java.lang.RuntimeException: Unable to resume activity {com.ourThesis.junieNegentien2015/com.ourThesis.junieNegentien2015.MainActivity}: java.lang.NullPointerException

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.zkoss.bind.BindComposer.initViewModel()
    2. ZK Bind
      BindComposer.doBeforeComposeChildren
      1. org.zkoss.bind.BindComposer.initViewModel(BindComposer.java:229)
      2. org.zkoss.bind.BindComposer.doBeforeComposeChildren(BindComposer.java:142)
      2 frames
    3. ZK Kernel
      Executions.createComponents
      1. org.zkoss.zk.ui.impl.UiEngineImpl.doBeforeComposeChildren(UiEngineImpl.java:875)
      2. org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild0(UiEngineImpl.java:814)
      3. org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild(UiEngineImpl.java:771)
      4. org.zkoss.zk.ui.impl.UiEngineImpl.execCreate0(UiEngineImpl.java:680)
      5. org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild(UiEngineImpl.java:742)
      6. org.zkoss.zk.ui.impl.UiEngineImpl.execCreate0(UiEngineImpl.java:702)
      7. org.zkoss.zk.ui.impl.UiEngineImpl.execCreate(UiEngineImpl.java:644)
      8. org.zkoss.zk.ui.impl.UiEngineImpl.createComponents(UiEngineImpl.java:1025)
      9. org.zkoss.zk.ui.impl.AbstractExecution.createComponents0(AbstractExecution.java:246)
      10. org.zkoss.zk.ui.impl.AbstractExecution.createComponents(AbstractExecution.java:238)
      11. org.zkoss.zk.ui.Executions.createComponents(Executions.java:179)
      11 frames
    4. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
      4. java.lang.reflect.Method.invoke(Unknown Source)
      4 frames
    5. BeanShell
      Interpreter.eval
      1. bsh.Reflect.invokeMethod(Unknown Source)
      2. bsh.Reflect.invokeStaticMethod(Unknown Source)
      3. bsh.Name.invokeMethod(Unknown Source)
      4. bsh.BSHMethodInvocation.eval(Unknown Source)
      5. bsh.BSHPrimaryExpression.eval(Unknown Source)
      6. bsh.BSHPrimaryExpression.eval(Unknown Source)
      7. bsh.Interpreter.eval(Unknown Source)
      8. bsh.Interpreter.eval(Unknown Source)
      8 frames
    6. ZK Kernel
      DHtmlUpdateServlet.doPost
      1. org.zkoss.zk.scripting.bsh.BSHInterpreter.exec(BSHInterpreter.java:131)
      2. org.zkoss.zk.scripting.util.GenericInterpreter.interpret(GenericInterpreter.java:328)
      3. org.zkoss.zk.ui.impl.PageImpl.interpret(PageImpl.java:875)
      4. org.zkoss.zk.ui.AbstractComponent.service(AbstractComponent.java:2701)
      5. org.zkoss.zk.ui.AbstractComponent.service(AbstractComponent.java:2654)
      6. org.zkoss.zk.ui.impl.EventProcessor.process(EventProcessor.java:136)
      7. org.zkoss.zk.ui.impl.UiEngineImpl.processEvent(UiEngineImpl.java:1710)
      8. org.zkoss.zk.ui.impl.UiEngineImpl.process(UiEngineImpl.java:1495)
      9. org.zkoss.zk.ui.impl.UiEngineImpl.execUpdate(UiEngineImpl.java:1205)
      10. org.zkoss.zk.au.http.DHtmlUpdateServlet.process(DHtmlUpdateServlet.java:583)
      11. org.zkoss.zk.au.http.DHtmlUpdateServlet.doGet(DHtmlUpdateServlet.java:481)
      12. org.zkoss.zk.au.http.DHtmlUpdateServlet.doPost(DHtmlUpdateServlet.java:489)
      12 frames
    7. JavaServlet
      HttpServlet.service
      1. javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
      2. javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
      2 frames
    8. Jetty Server
      SelectChannelEndPoint.run
      1. org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
      2. org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:401)
      3. org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
      4. org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
      5. org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
      6. org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
      7. org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
      8. org.mortbay.jetty.Server.handle(Server.java:326)
      9. org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
      10. org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:945)
      11. org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:756)
      12. org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
      13. org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
      14. org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
      14 frames
    9. Jetty Util
      QueuedThreadPool$PoolThread.run
      1. org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
      1 frame