ZeroPaddingIntegerConverter/AbstractConverter does not support null
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                 Key: WICKET-1178
                 URL: https://issues.apache.org/jira/browse/WICKET-1178
             Project: Wicket
          Issue Type: Bug
          Components: wicket
    Affects Versions: 1.3.0-rc1
            Reporter: Stephane Bailliez


java.lang.NullPointerException
     at 
org.apache.wicket.util.convert.converters.AbstractConverter.parse(AbstractConverter.java:55)
     at 
org.apache.wicket.util.convert.converters.AbstractNumberConverter.parse(AbstractNumberConverter.java:76)
     at 
org.apache.wicket.util.convert.converters.ZeroPaddingIntegerConverter.convertToObject(ZeroPaddingIntegerConverter.java:66)
     at 
org.apache.wicket.markup.html.form.FormComponent.convertInput(FormComponent.java:1134)
     at 
org.apache.wicket.markup.html.form.FormComponent.validate(FormComponent.java:1016)
     at org.apache.wicket.markup.html.form.Form$15.validate(Form.java:1644)
     at 
org.apache.wicket.markup.html.form.Form$ValidationVisitor.formComponent(Form.java:152)
     at 
org.apache.wicket.markup.html.form.FormComponent.visitFormComponentsPostOrderHelper(FormComponent.java:400)
     at 
org.apache.wicket.markup.html.form.FormComponent.visitFormComponentsPostOrderHelper(FormComponent.java:387)
     at 
org.apache.wicket.markup.html.form.FormComponent.visitFormComponentsPostOrderHelper(FormComponent.java:387)
     at 
org.apache.wicket.markup.html.form.FormComponent.visitFormComponentsPostOrderHelper(FormComponent.java:387)
     at 
org.apache.wicket.markup.html.form.FormComponent.visitFormComponentsPostOrder(FormComponent.java:365)
     at 
org.apache.wicket.markup.html.form.Form.visitFormComponentsPostOrder(Form.java:982)
     at 
org.apache.wicket.markup.html.form.Form.validateComponents(Form.java:1640)
     at org.apache.wicket.markup.html.form.Form.validate(Form.java:1631)
     at org.apache.wicket.markup.html.form.Form.process(Form.java:794)
     at org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:766)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at 
org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:183)
     at 
org.apache.wicket.request.target.component.listener.ListenerInterfaceRequestTarget.processEvents(ListenerInterfaceRequestTarget.java:73)
     at 
org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:90)
     at 
org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1094)
     at org.apache.wicket.RequestCycle.step(RequestCycle.java:1169)
     at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1248)
     at org.apache.wicket.RequestCycle.request(RequestCycle.java:489)
     at 
org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:343)
     at 
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:193)

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