I´m having this exception. It is quite weird because it only happens when an event over a textbox is thrown but not when the component is created. I mean, the window runs perfect and the textbox is filled perfectly with the 'notaDecimalTexto' method. Only fails when the onChangeEvent is thrown.

Grave: >>org.zkoss.zk.ui.UiException: java.lang.NoSuchMethodException: model.core.CalificacionProvisional: no method called notaDecimalTexto for [null]
>>java.lang.NoSuchMethodException: model.core.CalificacionProvisional: no method called notaDecimalTexto for [null]
>> at org.zkoss.lang.Classes.newNoSuchMethodException(Classes.java:691)
>> at org.zkoss.lang.Classes.myGetAcsObj(Classes.java:1055)
>> at org.zkoss.lang.Classes.getAccessibleObject(Classes.java:980)
>> at org.zkoss.lang.reflect.Fields.set(Fields.java:144)
>> at org.zkoss.zkplus.databind.DataBinder.setBeanAndRegisterBeanSameNodes(DataBinder.java:1122)
>> at org.zkoss.zkplus.databind.Binding.saveAttributeValue(Binding.java:457)
>> at org.zkoss.zkplus.databind.Binding.access$200(Binding.java:51)
>> at org.zkoss.zkplus.databind.Binding$BaseSaveEventListener.handleEvent(Binding.java:777)
>> at org.zkoss.zkplus.databind.Binding$SaveEventListener.onEvent(Binding.java:706)
>> at org.zkoss.zk.ui.impl.EventProcessor.process0(EventProcessor.java:170)
>> at org.zkoss.zk.ui.impl.EventProcessor.process(EventProcessor.java:138)
>> at org.zkoss.zk.ui.impl.EventProcessingThreadImpl.process0(EventProcessingThreadImpl.java:517)
>> at org.zkoss.zk.ui.impl.EventProcessingThreadImpl.run(EventProcessingThreadImpl.java:444)