In the last few days I've been developing an app trying to learn Wicket
and I've noticed for some reason or another I'll occasionally get a
StackOverflowException (from java.util.regex.Pattern) and I am having a
heck of a time tracking down what is causing it.
I did a search in both users and dev lists and found this post:
http://sourceforge.net/mailarchive/message.php?msg_id=11223256
Which sounds similar to what I'm seeing, although the page it's dying on
isn't using any custom models just a ListView.
Java code below:
---------------------
public ManageContentPage(PageParameters pageParameters)
{
PageDAO pageDAO =
(PageDAO)WebApplicationContextUtils.getWebApplicationContext(getWebRequestCycle().getWebSession().getHttpSession().getServletContext()).getBean("pageDAO");
add(new Label("title", "Manage Pages"));
add(new Label("header", "Manage Pages"));
add(new ListView("pageList", pageDAO.getPages())
{
private static final long serialVersionUID = 1L;
@Override
protected void populateItem(ListItem listItem)
{
PageDTO page = (PageDTO)listItem.getModelObject();
System.out.println("Page: " + page);
listItem.add(new Label("id", page.getId().toString()));
listItem.add(new Label("name", page.getName()));
listItem.add(new Label("summary",
page.getContent().substring(0, 64)));
listItem.add(removeLink("removeButton", listItem));
}
});
}
---------------------
HTML page below:
---------------------
<tbody>
<tr wicket:id="pageList">
<td wicket:id="id">ID</td>
<td wicket:id="name">NAME</td>
<td wicket:id="summary">SUMMARY</td>
<td><button wicket:id="removeButton">Remove</button></td>
</tr>
</tbody>
---------------------
The strange part is that when the DB is empty, no page records, I get
the endless stack trace and overflow above. But if I just add one
record, viola, it works fine. Can someone point out what checks I am
suppose to implement that I missed and why this code is totally blowing
instead of just displaying an empty table with no rows?
Best,
Riyad
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