Hi,
I've been struggling for some hours now with a weird problem that I don't at
all understand where it comes from. I'm using Tapestry 4.0.2, and the
stacktrace of the exception, which happens when i try to display the page,
is:
# org.apache.tapestry.bean.BeanProvider.<init>(BeanProvider.java:104)
# org.apache.tapestry.AbstractComponent.getBeans(AbstractComponent.java:580)
# org.apache.tapestry.binding.BeanBinding.getObject(BeanBinding.java:64)
#
org.apache.tapestry.binding.AbstractBinding.getObject(AbstractBinding.java:8
7)
# $Form_10.getDelegate($Form_10.java)
# org.apache.tapestry.form.Form.cleanupAfterRender(Form.java:210)
# $Form_10.cleanupAfterRender($Form_10.java)
# org.apache.tapestry.AbstractComponent.render(AbstractComponent.java:623)
#
org.apache.tapestry.AbstractComponent.renderBody(AbstractComponent.java:434)
Line 104 in BeanProvider is:
Infrastructure infrastructure =
component.getPage().getRequestCycle().getInfrastructure();
I guess that that could cause an NPE if there was something wrong in the
page/component setup. But I can't figure out what it is, despite lots of
trial and error with all kinds of alternatives. A small setup that gives me
the error is:
---------- EditItem.html -------------
<html>
<head>
</head>
<body>
<span jwcid="$content$">
<span jwcid="@Border">
Edit...
<form jwcid="[EMAIL PROTECTED]" success="listener:doSubmit">
<!-- irrelevant whether i put actual form components here or not -->
<input type="submit" value="Save"/>
</form>
<p/>
<a jwcid="@PageLink" page="ListAll" href="#">List All</a>
</span>
</span>
</body>
</html>
--------------
--------- EditItem.page -------------------
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE page-specification PUBLIC
"-//Apache Software Foundation//Tapestry Specification 4.0//EN"
"http://jakarta.apache.org/tapestry/dtd/Tapestry_4_0.dtd";>
<page-specification class="se.jadestone.spirits.wrs.EditItemPage">
<description>edits something old</description>
</page-specification>
--------------------
--------- EditItemPage.java -----
package se.jadestone.spirits.wrs;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.tapestry.html.BasePage;
public class EditItemPage extends BasePage {
private static final Log log =
LogFactory.getLog(EditItemPage.class);
public void doSubmit() {
log.debug("doSubmit()");
}
}
---------------------
I'm running the application through Eclipse/JettyLauncher/Jetty.
Can anybody give me a hint as to what could be going wrong here? There's
another form in the application that works, and I can't see what the problem
could be. I'm sure it's something stupid that I'm missing.
Thanks,
Petter
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