This looks like a problem in the xml schama based completion. I found that the jsp-config element content specification
is not in the declared 

http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd

schema, but is contained in included jsp_2_0.xsd schema. So it looks like the model doesn't properly reflect the
included schemas content.

Anyway, this is xml module issue so reassigning to the default owner.

The problem is that, included and imported schemas are loaded from the relative location as specified in the primary
schema. CC in web.xml uses web-app_2_5.xsd which is available in runtime catalog. This includes, two more schemas:

  <xsd:include schemaLocation="javaee_5.xsd"/>
  <xsd:include schemaLocation="jsp_2_1.xsd"/>

which can not be found/loaded from the same location as the primary and hence the problem. Is there any way we can make
them available there?

OK, I will add jsp_2_1.xsd to the catalog. Reassigning to me and increasing priority, because for as it's important and
it's regression. Is there any general issue, which describes the problem with imported shemas? 

So basically this also means that all schemas in j2ee/ddloaders should be in one directory (unless we want to duplicate 
javaee schemas within the module). Currently they are in [app|web|ejb|application].resources folders.

I can have a look at this since I have been doing some changes in this area lately.

Working on this now.

Samaresh, could you please have a look at this? 

I put all included schemas into the same directory, but I'm getting the following AE when invoking code completion in 
web.xml:

java.lang.AssertionError
	at org.netbeans.modules.xml.xam.AbstractModelFactory.getModel(AbstractModelFactory.java:108)
	at org.netbeans.modules.xml.schema.model.SchemaModelFactory.getModel(SchemaModelFactory.java:95)
	at org.netbeans.modules.xml.schema.model.impl.IncludeImpl.resolveReferencedModel(IncludeImpl.java:78)
...

I have sources from 08/20, JDK 1.5 and Linux.

I'm attaching the full stack trace and a patch for the j2ee/ddloaders module that contains the catalog and the schemas. 
I noticed an email about the same excpeption on nbdev that suggested prefixing the included schema with its target 
namespace - tried that, but no dice. I would also be interested to know whether all included schemas need to be 
provided by the same catalog that provides the schema itself? That's what I've done now (since I thought that providing 
included schemas from a different catalog was causing the error), but not sure whether it is really needed. Thanks. 

Created attachment 47035 [details]
stacktrace

Created attachment 47036 [details]
j2ee/ddloaders diff

Samaresh, any input on this? Assigning to xml.

It came to my notice recently. I think imported/included schemas are not getting loaded. I'll look into this and get back.

Fix integrated:
/cvs/xml/xdm/src/org/netbeans/modules/xml/xdm/xam/XDMAccessProvider.java,
new revision: 1.3; previous revision: 1.2

Second part of the fix will be:
1. Register the referenced schemas in catalog
2. The reference path should use the system-id.

In web-app_2_5.xsd, the import should be changed as follows:

<xsd:include schemaLocation="http://java.sun.com/xml/ns/javaee/javaee_5.xsd"/>
<xsd:include schemaLocation="http://java.sun.com/xml/ns/javaee/jsp_2_1.xsd"/>

assuming that these two schemas are registered with the above mentioned system-id.

I'm attaching the diff patch for j2ee/ddloaders.

Created attachment 47936 [details]
j2ee/ddloaders diff patch

Assigning to Petr for the fix in ddloaders.

*** Issue 113574 has been marked as a duplicate of this issue. ***

Thanks Samaresh, I will integrate the patch.

Fixed in trunk. Note that I didn't really apply the patch as such, but modified the patch I attached here earlier. I 
changed all schemas in ddloaders to be provided by the same catalog, o.n.m.j2ee.ddloaders.catalog.EnterpriseCatalog 
(which I moved there with the needed resources from o.n.m.j2ee.ddloaders.app) mainly to avoid duplicating schemas in 
different catalogs. The commit fixes also issue 113664. 

Removing app/resources/javaee_web_services_1_2.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/app/resources/javaee_web_services_1_2.xsd,v  <--  
javaee_web_services_1_2.xsd
new revision: delete; previous revision: 1.2
done
Removing app/resources/application_1_4.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/app/resources/application_1_4.xsd,v  <--  
application_1_4.xsd
new revision: delete; previous revision: 1.2
done
Removing app/resources/j2ee_web_services_client_1_1.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/app/resources/j2ee_web_services_client_1_1.xsd,v  <--  
j2ee_web_services_client_1_1.xsd
new revision: delete; previous revision: 1.2
done
Removing app/resources/application_5.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/app/resources/application_5.xsd,v  <--  application_5.xsd
new revision: delete; previous revision: 1.2
done
Removing app/resources/connector_1_5.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/app/resources/connector_1_5.xsd,v  <--  connector_1_5.xsd
new revision: delete; previous revision: 1.2
done
Removing app/resources/j2ee_web_services_1_1.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/app/resources/j2ee_web_services_1_1.xsd,v  <--  
j2ee_web_services_1_1.xsd
new revision: delete; previous revision: 1.2
done
Removing app/resources/javaee_web_services_client_1_2.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/app/resources/javaee_web_services_client_1_2.xsd,v  <--  
javaee_web_services_client_1_2.xsd
new revision: delete; previous revision: 1.2
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/application-client_1_4.xsd,v
done
Checking in catalog/resources/application-client_1_4.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/application-client_1_4.xsd,v  <--  
application-client_1_4.xsd
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/connector_1_5.xsd,v
done
Checking in catalog/resources/connector_1_5.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/connector_1_5.xsd,v  <--  
connector_1_5.xsd
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/jsp_2_0.xsd,v
done
Checking in catalog/resources/jsp_2_0.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/jsp_2_0.xsd,v  <--  jsp_2_0.xsd
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/ejb-jar_3_0.xsd,v
done
Checking in catalog/resources/ejb-jar_3_0.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/ejb-jar_3_0.xsd,v  <--  ejb-jar_3_0.xsd
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/javaee_web_services_1_2.xsd,v
done
Checking in catalog/resources/javaee_web_services_1_2.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/javaee_web_services_1_2.xsd,v  <--  
javaee_web_services_1_2.xsd
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/jsp_2_1.xsd,v
done
Checking in catalog/resources/jsp_2_1.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/jsp_2_1.xsd,v  <--  jsp_2_1.xsd
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/web-app_2_3.dtd,v
done
Checking in catalog/resources/web-app_2_3.dtd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/web-app_2_3.dtd,v  <--  web-app_2_3.dtd
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/javaee_5.xsd,v
done
Checking in catalog/resources/javaee_5.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/javaee_5.xsd,v  <--  javaee_5.xsd
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/application-client_5.xsd,v
done
Checking in catalog/resources/application-client_5.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/application-client_5.xsd,v  <--  
application-client_5.xsd
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/web-app_2_2.dtd,v
done
Checking in catalog/resources/web-app_2_2.dtd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/web-app_2_2.dtd,v  <--  web-app_2_2.dtd
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/web-app_2_5.xsd,v
done
Checking in catalog/resources/web-app_2_5.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/web-app_2_5.xsd,v  <--  web-app_2_5.xsd
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/ejb-jar_2_1.xsd,v
done
Checking in catalog/resources/ejb-jar_2_1.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/ejb-jar_2_1.xsd,v  <--  ejb-jar_2_1.xsd
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/j2ee_web_services_1_1.xsd,v
done
Checking in catalog/resources/j2ee_web_services_1_1.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/j2ee_web_services_1_1.xsd,v  <--  
j2ee_web_services_1_1.xsd
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/web-app_2_4.xsd,v
done
Checking in catalog/resources/web-app_2_4.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/web-app_2_4.xsd,v  <--  web-app_2_4.xsd
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/
javaee_web_services_client_1_2.xsd,v
done
Checking in catalog/resources/javaee_web_services_client_1_2.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/javaee_web_services_client_1_2.xsd,v  <-
-  javaee_web_services_client_1_2.xsd
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/j2ee_1_4.xsd,v
done
Checking in catalog/resources/j2ee_1_4.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/j2ee_1_4.xsd,v  <--  j2ee_1_4.xsd
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/DDCatalog.gif,v
done
Checking in catalog/resources/DDCatalog.gif;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/DDCatalog.gif,v  <--  DDCatalog.gif
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/application_5.xsd,v
done
Checking in catalog/resources/application_5.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/application_5.xsd,v  <--  
application_5.xsd
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/application_1_4.xsd,v
done
Checking in catalog/resources/application_1_4.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/application_1_4.xsd,v  <--  
application_1_4.xsd
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/
j2ee_web_services_client_1_1.xsd,v
done
Checking in catalog/resources/j2ee_web_services_client_1_1.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/resources/j2ee_web_services_client_1_1.xsd,v  <--  
j2ee_web_services_client_1_1.xsd
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/EnterpriseCatalog.java,v
done
Checking in catalog/EnterpriseCatalog.java;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/EnterpriseCatalog.java,v  <--  
EnterpriseCatalog.java
initial revision: 1.1
done
RCS file: /cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/Bundle.properties,v
done
Checking in catalog/Bundle.properties;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/catalog/Bundle.properties,v  <--  Bundle.properties
initial revision: 1.1
done
Removing client/resources/application-client_1_4.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/client/resources/application-client_1_4.xsd,v  <--  
application-client_1_4.xsd
new revision: delete; previous revision: 1.2
done
Removing client/resources/application-client_5.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/client/resources/application-client_5.xsd,v  <--  
application-client_5.xsd
new revision: delete; previous revision: 1.2
done
Removing web/resources/j2ee_1_4.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/web/resources/j2ee_1_4.xsd,v  <--  j2ee_1_4.xsd
new revision: delete; previous revision: 1.1
done
Removing web/resources/jsp_2_0.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/web/resources/jsp_2_0.xsd,v  <--  jsp_2_0.xsd
new revision: delete; previous revision: 1.2
done
Removing web/resources/javaee_web_services_client_1_2.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/web/resources/javaee_web_services_client_1_2.xsd,v  <--  
javaee_web_services_client_1_2.xsd
new revision: delete; previous revision: 1.2
done
Removing web/resources/jsp_2_1.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/web/resources/jsp_2_1.xsd,v  <--  jsp_2_1.xsd
new revision: delete; previous revision: 1.3
done
Removing web/resources/j2ee_web_services_client_1_1.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/web/resources/j2ee_web_services_client_1_1.xsd,v  <--  
j2ee_web_services_client_1_1.xsd
new revision: delete; previous revision: 1.1
done
Removing web/resources/web-app_2_5.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/web/resources/web-app_2_5.xsd,v  <--  web-app_2_5.xsd
new revision: delete; previous revision: 1.3
done
Removing web/resources/web-app_2_2.dtd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/web/resources/web-app_2_2.dtd,v  <--  web-app_2_2.dtd
new revision: delete; previous revision: 1.1
done
Removing web/resources/web-app_2_4.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/web/resources/web-app_2_4.xsd,v  <--  web-app_2_4.xsd
new revision: delete; previous revision: 1.2
done
Removing web/resources/javaee_5.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/web/resources/javaee_5.xsd,v  <--  javaee_5.xsd
new revision: delete; previous revision: 1.2
done
Removing web/resources/web-app_2_3.dtd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/web/resources/web-app_2_3.dtd,v  <--  web-app_2_3.dtd
new revision: delete; previous revision: 1.1
done
Removing app/EnterpriseCatalog.java;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/app/EnterpriseCatalog.java,v  <--  EnterpriseCatalog.java
new revision: delete; previous revision: 1.2
done
Removing web/DDGrammarQueryManager.java;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/web/DDGrammarQueryManager.java,v  <--  
DDGrammarQueryManager.java
new revision: delete; previous revision: 1.4
done
Removing web/DDCatalog.java;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/web/DDCatalog.java,v  <--  DDCatalog.java
new revision: delete; previous revision: 1.5
done
Checking in web/Bundle.properties;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/web/Bundle.properties,v  <--  Bundle.properties
new revision: 1.4; previous revision: 1.3
done
Removing ejb/resources/ejb-jar_2_1.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/ejb/resources/ejb-jar_2_1.xsd,v  <--  ejb-jar_2_1.xsd
new revision: delete; previous revision: 1.2
done
Removing ejb/resources/ejb-jar_3_0.xsd;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/ejb/resources/ejb-jar_3_0.xsd,v  <--  ejb-jar_3_0.xsd
new revision: delete; previous revision: 1.2
done
Checking in resources/layer.xml;
/cvs/j2ee/ddloaders/src/org/netbeans/modules/j2ee/ddloaders/resources/layer.xml,v  <--  layer.xml
new revision: 1.11; previous revision: 1.10
done