Error in web.xml related to multiple url-pattern tags?

[mezmo]

I've got a JEE 5 app, and I'm using both filters and servlets with a single, say filter-mapping section, and multiple url-pattern entries in it. When I open the file I get the error "Fatal errors were found in web.xml file. It is highly recommended that you fix the errors in the XML view (XML tab) as soon as possible. Try to validate the XML document to see the problem". So, I do XML check, its fine, I do XML validate, and it is fine. When I hover over the doc in the file view I see the message, "DOM graph creation failed: org.netbeans.modules.schema2beans.Schema2BeansRuntimeException property url-pattern already bound to a DOM node". But according to everything I can read on the subject, including the schema, what I'm doing is acceptable, and the app deploys fine. Any ideas what the problem may be?
tia

[zemu]

Hi,

I know the question is 9-month old, but it could still be useful to someone.

I had the same problem with Netbeans 6.8 and it turned out it was due to my servlet-mapping configuration, that contained several url-pattern nodes. I resolved it by splitting it into several servlet-mapping nodes, each containing only one url-pattern.

BEFORE :

<servlet-mapping>
<servlet-name>jsp</servlet-name>
<url-pattern>pattern1</url-pattern>
<url-pattern>pattern2</url-pattern>
</servlet-mapping>

AFTER :

<servlet-mapping>
<servlet-name>jsp</servlet-name>
<url-pattern>pattern1</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>jsp</servlet-name>
<url-pattern>pattern2</url-pattern>
</servlet-mapping>

It worked just fine for me, the IDE stopped to complain.

[mezmo]

That's the standard for older JEE platforms, and yes its still supported, but the newer, more concise syntax was introduced in JEE 5, and my point was that it should support both, and both are supported by the schema, but for some reason its giving an erroneous error.
It needs to be fixed, maybe in 6.9...I'll have to try it out.

[troy giunipero]

Can you produce the web.xml file that is giving an error? I was
recently working on a project that included multiple <url-pattern>
entries, and didn't have any problems in 6.8 or 6.9:

<servlet>
<servlet-name>Controller</servlet-name>
<servlet-class>controller.ControllerServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
<servlet-name>Controller</servlet-name>
<url-pattern>/category</url-pattern>
<url-pattern>/addToCart</url-pattern>
<url-pattern>/viewCart</url-pattern>
<url-pattern>/updateCart</url-pattern>
<url-pattern>/checkout</url-pattern>
<url-pattern>/purchase</url-pattern>
<url-pattern>/chooseLanguage</url-pattern>
</servlet-mapping>


On 6/23/10 9:49 AM, zemu wrote:

[zemu]

Below is a tight version of my web.xml :

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>My App</display-name>

<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>

<servlet-mapping>
<servlet-name>jsp</servlet-name>
<url-pattern>/about</url-pattern>
<url-pattern>/loginpage</url-pattern>
</servlet-mapping>

</web-app>

With this version, I have the error mezmo reported ("url-pattern already bound to a DOM node") and if I try to edit the file using another tab than XML tab (like 'General' or 'Servlets') a dialog box warns me my xml file contains error and I should edit it via the XML tab.

If I change the attributes of the node <web-app> so that 'version' and 'xsi:schemaLocation' point to version 2.5 instead of 2.4, the warning dialog box disappear, but I still got the error about url-pattern.

I just saw that I my app is running as J2EE 1.4, so maybe all this a normal after all. What surprises me it that the error was not present before, and I do not think I recently change the java version the app runs as.

[troy giunipero]

You need to use schema version 2.5 (or 3.0) to take advantage of
multiple url-patterns in a single servlet-mapping. Also, you need to
define your servlet (using the <servlet> tag) in order for the
<servlet-mapping> entry to have the proper effect.

On 6/23/10 5:04 PM, zemu wrote: