LoadChildrenBindingImpl at line 50. It trys to automatically convert a single object to a List with Classes.coerce(List.class, value).

This will cause NoSuchMethodException since List.class is an interface, no way to find a constructor.

>>java.lang.NoSuchMethodException: java.util.List: no constructor for [org.zkoss.zktest.bind.basic.Book@2d9b4fac]
>> at org.zkoss.lang.Classes.newInstance(Classes.java:97)
>> at org.zkoss.lang.Classes.coerce(Classes.java:1437)
>> at org.zkoss.bind.impl.LoadChildrenBindingImpl.load(LoadChildrenBindingImpl.java:50)
>> at org.zkoss.bind.impl.ChildrenBindingHandler.doLoadBinding(ChildrenBindingHandler.java:116)
>> at org.zkoss.bind.impl.ChildrenBindingHandler.doLoad(ChildrenBindingHandler.java:176)
>> at org.zkoss.bind.impl.BinderImpl.loadComponentProperties(BinderImpl.java:1818)
>> at org.zkoss.bind.impl.BinderImpl.loadComponent(BinderImpl.java:1795)
>> at org.zkoss.bind.tracker.impl.BindUiLifeCycle$1.onEvent(BindUiLifeCycle.java:63)