[TAPESTRY-1455] EventListener fails to update PropertySelection in Internet Explorer-only

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Cannot Reproduce
• Affects Version/s: 4.1.2
• Component/s: XHR/dhtml/Ajax
• Environment: Tapestry 4.1.2 snapshot from 5-9, WinXP
• Assignee: Jesse Kuhnert
• Reporter: Ben Dotte
• Created: 09/May/07 16:18
• Updated: 13/May/07 00:31
• Resolved: 13/May/07 00:31

Description

I have an EventListener that is trying to take the input from one PropertySelection and update a second PropertySelection asynchronously based on the input from the first one. It works great in Firefox 2 but fails in IE7. In IE7, when I pick a value on the first dropdown, all values from the second dropdown disappear and a stacktrace appears on the console. I couldn't get it to work in IE6 either but I can't tell if it is the same problem or something else going on in the page.

Here is some example code that demonstrates the problem:

.html:
<form jwcid="theForm@Form">
<span jwcid="numbers@PropertySelection" value="ognl:selectedNumber" model="ognl:numberModel" />
<br />
<br />
<span jwcid="letters@PropertySelection" value="ognl:selectedLetter" model="ognl:letterModel" />
</form>

.java:
@InitialValue("1")
public abstract Integer getSelectedNumber();

public abstract String getSelectedLetter();

public IPropertySelectionModel getNumberModel()
{
List<Integer> numbers = Arrays.asList(1, 2);
return getBasicModel(numbers);
}

public IPropertySelectionModel getLetterModel()
{
if (getSelectedNumber().intValue() == 1)

{ List<String> letters = Arrays.asList("a", "b", "c"); return getBasicModel(letters); }

List<String> letters = Arrays.asList("d", "e", "f");
return getBasicModel(letters);
}

private IPropertySelectionModel getBasicModel(final List items)
{
return new IPropertySelectionModel()
{
public String getLabel(int index)

{ return items.get(index).toString(); }

public Object getOption(int index)

{ return items.get(index); }

public int getOptionCount()

{ return items.size(); }

public String getValue(int index)

{ return Integer.toString(index); }

public boolean isDisabled(int index)

{ return false; }

public Object translateValue(String value)

{ return getOption(Integer.parseInt(value)); }

};
}

@EventListener(targets="numbers", events="onchange", submitForm="theForm")
public void numberSelected(IRequestCycle cycle)
{
try

{ cycle.getResponseBuilder().updateComponent("letters"); }

catch (Exception e)

{ e.printStackTrace(); }

}

The stacktrace I get on the console is as follows:

org.apache.hivemind.ApplicationRuntimeException: For input string: "" [context:/WEB-INF/app/DirectorAccount.html]
at org.apache.tapestry.engine.RequestCycle.rewindForm(RequestCycle.java:474)
at org.apache.tapestry.form.Form.trigger(Form.java:289)
at org.apache.tapestry.engine.DirectService.triggerComponent(DirectService.java:166)
at org.apache.tapestry.engine.DirectService.service(DirectService.java:142)
at $IEngineService_1127198abca.service($IEngineService_1127198abca.java)
at org.apache.tapestry.services.impl.EngineServiceOuterProxy.service(EngineServiceOuterProxy.java:72)
at org.apache.tapestry.engine.AbstractEngine.service(AbstractEngine.java:246)
at org.apache.tapestry.services.impl.InvokeEngineTerminator.service(InvokeEngineTerminator.java:54)
at $WebRequestServicer_1127198aba3.service($WebRequestServicer_1127198aba3.java)
at $WebRequestServicer_1127198ab9f.service($WebRequestServicer_1127198ab9f.java)
at org.apache.tapestry.services.impl.WebRequestServicerPipelineBridge.service(WebRequestServicerPipelineBridge.java:61)
at $ServletRequestServicer_1127198ab81.service($ServletRequestServicer_1127198ab81.java)
at org.apache.tapestry.request.DecodedRequestInjector.service(DecodedRequestInjector.java:55)
at $ServletRequestServicerFilter_1127198ab7d.service($ServletRequestServicerFilter_1127198ab7d.java)
at $ServletRequestServicer_1127198ab83.service($ServletRequestServicer_1127198ab83.java)
at collective.ui.custom.HibernateFilter.service(HibernateFilter.java:37)
at $ServletRequestServicerFilter_1127198ab7b.service($ServletRequestServicerFilter_1127198ab7b.java)
at $ServletRequestServicer_1127198ab83.service($ServletRequestServicer_1127198ab83.java)
at collective.ui.custom.LuceneIndexFilter.service(LuceneIndexFilter.java:24)
at $ServletRequestServicerFilter_1127198ab79.service($ServletRequestServicerFilter_1127198ab79.java)
at $ServletRequestServicer_1127198ab83.service($ServletRequestServicer_1127198ab83.java)
at org.apache.tapestry.multipart.MultipartDecoderFilter.service(MultipartDecoderFilter.java:52)
at $ServletRequestServicerFilter_1127198ab77.service($ServletRequestServicerFilter_1127198ab77.java)
at $ServletRequestServicer_1127198ab83.service($ServletRequestServicer_1127198ab83.java)
at org.apache.tapestry.services.impl.SetupRequestEncoding.service(SetupRequestEncoding.java:53)
at $ServletRequestServicerFilter_1127198ab7f.service($ServletRequestServicerFilter_1127198ab7f.java)
at $ServletRequestServicer_1127198ab83.service($ServletRequestServicer_1127198ab83.java)
at $ServletRequestServicer_1127198ab70.service($ServletRequestServicer_1127198ab70.java)
at org.apache.tapestry.ApplicationServlet.doService(ApplicationServlet.java:123)
at collective.ui.CollectiveApplicationServlet.doService(CollectiveApplicationServlet.java:71)
at org.apache.tapestry.ApplicationServlet.doPost(ApplicationServlet.java:168)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:763)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:427)
at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:832)
at collective.servlet.ResponseHeaderFilter.doFilter(ResponseHeaderFilter.java:32)
at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:823)
at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:473)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:556)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1563)
at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:623)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1515)
at org.mortbay.http.HttpServer.service(HttpServer.java:956)
at org.mortbay.http.HttpConnection.service(HttpConnection.java:814)
at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:981)
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:831)
at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244)
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
Caused by: java.lang.NumberFormatException: For input string: ""
at java.lang.NumberFormatException.forInputString(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at collective.md.ui.pages.DirectorAccount$1.translateValue(DirectorAccount.java:89)
at org.apache.tapestry.form.PropertySelection.rewindFormComponent(PropertySelection.java:120)
at org.apache.tapestry.form.AbstractFormComponent.renderComponent(AbstractFormComponent.java:94)
at org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:724)
at org.apache.tapestry.services.impl.DojoAjaxResponseBuilder.render(DojoAjaxResponseBuilder.java:590)
at org.apache.tapestry.AbstractComponent.renderBody(AbstractComponent.java:537)
at org.apache.tapestry.form.FormSupportImpl.rewind(FormSupportImpl.java:603)
at org.apache.tapestry.form.Form.renderComponent(Form.java:205)
at org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:724)
at org.apache.tapestry.services.impl.DojoAjaxResponseBuilder.render(DojoAjaxResponseBuilder.java:590)
at org.apache.tapestry.form.Form.rewind(Form.java:278)
at org.apache.tapestry.engine.RequestCycle.rewindForm(RequestCycle.java:453)
... 48 more