SEVERE: 
java.lang.ClassCastException: class java.lang.Integer cannot be converted to class java.util.Locale.
	at org.zkoss.lang.Classes.coerce(Classes.java:1449)
	at org.zkoss.bind.impl.ParamCall.resolveParameter0(ParamCall.java:259)
	at org.zkoss.bind.impl.ParamCall.resolvePositionalParameter(ParamCall.java:230)
	at org.zkoss.bind.impl.ParamCall.resolveParameter(ParamCall.java:212)
	at org.zkoss.bind.impl.ParamCall.call(ParamCall.java:154)
	at org.zkoss.bind.impl.BinderImpl.handleNotifyChange(BinderImpl.java:1911)
	at org.zkoss.bind.impl.BinderImpl.doGlobalCommandExecute(BinderImpl.java:1872)
	at org.zkoss.bind.impl.BinderImpl.doGlobalCommand(BinderImpl.java:1841)
	at org.zkoss.bind.impl.BinderImpl.access$500(BinderImpl.java:137)
	at org.zkoss.bind.impl.BinderImpl$QueueListener.onEvent(BinderImpl.java:417)
	at org.zkoss.zk.ui.event.impl.DesktopEventQueue$QueueListener.onEvent(DesktopEventQueue.java:168)
	at org.zkoss.zk.ui.AbstractComponent.onEvent(AbstractComponent.java:3184)
	at org.zkoss.zk.ui.AbstractComponent.service(AbstractComponent.java:3154)
	at org.zkoss.zk.ui.AbstractComponent.service(AbstractComponent.java:3096)
	at org.zkoss.zk.ui.impl.EventProcessor.process(EventProcessor.java:138)
	at org.zkoss.zk.ui.impl.UiEngineImpl.processEvent(UiEngineImpl.java:1890)
	at org.zkoss.zk.ui.impl.UiEngineImpl.process(UiEngineImpl.java:1662)
	at org.zkoss.zk.ui.impl.UiEngineImpl.execUpdate(UiEngineImpl.java:1329)
	at org.zkoss.zk.au.http.DHtmlUpdateServlet.process(DHtmlUpdateServlet.java:570)
	at org.zkoss.zk.au.http.DHtmlUpdateServlet.doGet(DHtmlUpdateServlet.java:450)
	at org.zkoss.zk.au.http.DHtmlUpdateServlet.doPost(DHtmlUpdateServlet.java:458)
	...
Caused by: java.lang.NoSuchMethodException: java.util.Locale: no constructor for [1]
	at org.zkoss.lang.Classes.newInstance(Classes.java:100)
	at org.zkoss.lang.Classes.coerce(Classes.java:1445)
	... 45 more