Referenced file contains errors (http://hibernate.sourceforge.net/hibern ... ng-3.0.dtd). For more
information, right click on the message and select "Show Details..."

I have got the above error yesterday and i have read all over the internet finally i have heard that JBoss server down. If this is the case after some time JBoss's Server (Site) is up and running and if i hit this URL "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" i am able to download the dtd.

Second thing i have tried was downloaded the DTD and copied it in the same directory of all the hbm.xml file presents. and then i have modified the hbm.xml files to something like the following:

1. <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN" "hibernate-mapping-3.0.dtd">
2. <!DOCTYPE hibernate-mapping SYSTEM "<PATH>/hibernate-mapping-3.0.dtd">

1st Option couldn't find the path properly
2nd Option is working fine but we cannot change all the hbm files to point out the directory which we stored.

Then i have actually tried to create a sample project with the same configuration (hbm, Spring etc..) i doesnt show up the error message in the hbm file.

Sample HBM:

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="db.Test" table="test" catalog="test">
<id name="id" type="java.lang.Integer">
<meta attribute="use-in-equals">true</meta>
<column name="id" />
<generator class="identity" />
</id>
<property name="name" type="string">
<column name="name" length="45" not-null="true" />
</property>
<property name="createdDate" type="timestamp">
<column name="createdDate" length="19" not-null="true" />
</property>
<property name="isTrue" type="boolean">
<column name="isTrue" not-null="true" />
</property>
<property name="testId" type="string">
<column name="testId" length="45" not-null="true" />
</property>
</class>
</hibernate-mapping>

Don't know what to do. Can anyone help me out this problem?

Same problem for me. +1 to help request.

Same here, I'm also getting the following in my logs on a newly deployed app and startup is failing. Did hibernate-mapping-3.0.dtd get changed somehow? This was all working earlier in the week

2011-01-21 11:51:46,741 671 ERROR [org.hibernate.util.XMLHelper] (main:) Error parsing XML: file:/home/ben/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/foobar/WEB-INF/classes/hibernate.cfg.xml(5) Element type "hibernate-configuration" must be declared.
2011-01-21 11:51:46,760 690 ERROR [org.hibernate.util.XMLHelper] (main:) Error parsing XML: file:/home/ben/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/foobar/WEB-INF/classes/hibernate.cfg.xml(6) Element type "session-factory" must be declared.
2011-01-21 11:51:46,772 702 ERROR [org.hibernate.util.XMLHelper] (main:) Error parsing XML: file:/home/ben/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/foobar/WEB-INF/classes/hibernate.cfg.xml(8) The content of element type "property" must match "(meta*,(column|formula)*,type?)".
2011-01-21 11:51:46,778 708 ERROR [org.hibernate.util.XMLHelper] (main:) Error parsing XML: file:/home/ben/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/foobar/WEB-INF/classes/hibernate.cfg.xml(26) Element type "mapping" must be declared.

Try replacing the sourceforge URL with

It seems this issue has been fixed today for me.

This is still an issue for me.
When I changed to http://www.hibernate.org/dtd/hibernate- ... on-3.0.dtd I get more errors.

this worked for me

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