Irregular sessionfactory creation failure

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Java

MySQL

Hibernate

Initial SessionFactory creation failed.org.hibernate.HibernateException: Could not parse configuration: hibernate-annotation.cfg.xml

This is the error I am getting. Application runs properly all the time except for 2 incidents when application was throwing this error.

My primary guess is some how java/hibernate was failing to connect with mysql server. Which I am also investigating. But Not exactly sure what is happening. Here is configuration file for curious mind

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
		"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
		"http://hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
	<session-factory>
		<!-- Database connection properties - Driver, URL, user, password -->
		<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
		<property name="hibernate.connection.url">${mysql_url}</property>
		<property name="hibernate.connection.username">${mysql_user}</property>
		<property name="hibernate.connection.password">${mysql_pass}</property>

		<!-- org.hibernate.HibernateException: No CurrentSessionContext configured! -->
		<property name="hibernate.current_session_context_class">thread</property>
		<!-- <property name="hibernate.show_sql">true</property> -->
		<!-- <property name="hibernate.format_sql">true</property> -->
		<property name="connection.autocommit">true</property>

		<!-- Mapping with model class containing annotations -->
		<mapping class="*.hibernatemodel.*" />
	</session-factory>
</hibernate-configuration>

What I have tried:

I went through logs, it offers nothing much. If it was a consistent error, I would have known, I guess. Expecting to hear peoples experience. If you need any further information, please let me know.


--further findings--
hibernate access the url http://hibernate.org/dtd/hibernate-configuration-3.0.dtd in runtime. If for whatever the reason application fail to connect with internet my application will fail. If I remove the Doctype all together, application fails. And I do not like my batch accessing every minute(my batch runs every minute).

Does anyone know any potential solution? Besides getting rid off Hibernate of course.