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Bug
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Resolution: Fixed
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Normal
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8.0.4.2, 8.5.0
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Security Level: Jimmy
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None
Steps to Reproduce
run the attached example
vminit-aftercompose.zul
Current Result
Exception:
org.zkoss.zk.ui.UiException: can't find Page to resolve a view model class :'MyVm' at [file:/D:/workspace/projects_idea/support/zksupport8/src/main/webapp/potential/5193-vminit-aftercompose/mvvminc.zul, line:7, nearby column: 43] at org.zkoss.bind.BindComposer.initViewModel(BindComposer.java:254) at org.zkoss.bind.BindComposer.doBeforeComposeChildren(BindComposer.java:150) at org.zkoss.zk.ui.impl.UiEngineImpl.doBeforeComposeChildren(UiEngineImpl.java:997) at org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild0(UiEngineImpl.java:937) at org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild(UiEngineImpl.java:895) at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate0(UiEngineImpl.java:777) at org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild(UiEngineImpl.java:842) at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate0(UiEngineImpl.java:797) at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate(UiEngineImpl.java:740) at org.zkoss.zk.ui.impl.UiEngineImpl.createComponents(UiEngineImpl.java:1150) at org.zkoss.zk.ui.impl.AbstractExecution.createComponents0(AbstractExecution.java:346) at org.zkoss.zk.ui.impl.AbstractExecution.createComponents(AbstractExecution.java:307) at org.zkoss.zk.ui.Executions.createComponents(Executions.java:176) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at bsh.Reflect.invokeMethod(Reflect.java:131) at bsh.Reflect.invokeStaticMethod(Reflect.java:95) at bsh.Name.invokeMethod(Name.java:868) at bsh.BSHMethodInvocation.eval(BSHMethodInvocation.java:69) at bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:96) at bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:41) at bsh.BSHBlock.evalBlock(BSHBlock.java:125) at bsh.BSHBlock.eval(BSHBlock.java:75) at bsh.BshMethod.invokeImpl(BshMethod.java:356) at bsh.BshMethod.invoke(BshMethod.java:252) at bsh.BshMethod.invoke(BshMethod.java:180) at bsh.This.invokeMethod(This.java:248) at MyComposer.doAfterCompose(BeanShell Generated via ASM (www.objectweb.org)) at org.zkoss.zk.ui.impl.UiEngineImpl.doAfterCompose(UiEngineImpl.java:617) at org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild0(UiEngineImpl.java:948) at org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild(UiEngineImpl.java:895) at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate0(UiEngineImpl.java:777) at org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild(UiEngineImpl.java:842) at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate0(UiEngineImpl.java:797) at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate(UiEngineImpl.java:740) at org.zkoss.zk.ui.impl.UiEngineImpl.execNewPage0(UiEngineImpl.java:461) at org.zkoss.zk.ui.impl.UiEngineImpl.execNewPage(UiEngineImpl.java:369) at org.zkoss.zk.ui.http.DHtmlLayoutServlet.process(DHtmlLayoutServlet.java:211) at org.zkoss.zk.ui.http.DHtmlLayoutServlet.doGet(DHtmlLayoutServlet.java:137) at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) ...
Expected Result
1. no exception thrown
2. view model initialization when parent is added to page
Debug Info
creating components on a non-attached component causes the issue in initViewModel.
Workaround
attaching the newDiv before calling createComponents avoids the problem
public void doAfterCompose(Component comp) { Div newDiv = new Div(); comp.appendChild(newDiv); //append the newDiv before creating children using MVVM viewModels Executions.createComponents("mvvminc.zul", newDiv, null); }
