As per the best of my knowledge, your configuration is not proper for current session. Instead of
<property name="hibernate.current_session_context_class">org.hibernate.context.ThreadLocal‌​SessionContext</property>
use
<property name="hibernate.current_session_context_class">thread</property>
For more information on this, please visit this link:
http://docs.jboss.org/hibernate/orm/3.3/reference/en/html/architecture.html#architecture-current-session
Specially, read the last lines of last paragraph.
For those who’re using Hibernate 4.1,
<property name="hibernate.current_session_context_class">org.hibernate.context.internal.ThreadLocalSessionContext</property>
Reference: https://docs.jboss.org/hibernate/orm/4.1/javadocs/org/hibernate/context/internal/ThreadLocalSessionContext.html