Problem with Xml

hi every body, please i received this message error whane running my java application , i know that it is about hibernate.cfg.xml file but i don’t know how resolving it.
the message is as follow:

INFO: HHH000412: Hibernate Core {5.2.17.Final}
mai 08, 2018 10:39:24 PM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: not found
Exception in thread "main" java.lang.ClassCastException: cannot be cast to
	at Source)
	at com.sun.xml.internal.bind.v2.runtime.unmarshaller.StAXEventConnector.handleCharacters(Unknown Source)
	at com.sun.xml.internal.bind.v2.runtime.unmarshaller.StAXEventConnector.bridge(Unknown Source)
	at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(Unknown Source)
	at com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal(Unknown Source)
	at org.hibernate.boot.cfgxml.internal.JaxbCfgProcessor.unmarshal(
	at org.hibernate.boot.cfgxml.internal.JaxbCfgProcessor.unmarshal(
	at org.hibernate.boot.cfgxml.internal.ConfigLoader.loadConfigXmlResource(
	at org.hibernate.boot.registry.StandardServiceRegistryBuilder.configure(
	at org.hibernate.cfg.Configuration.configure(
	at one.hibernate.demo.CreateStudentDemo.main(

can you help me please.thank’s

This was also brought here:

I suspect you have a database URL where you provide multiple parameters or something similar where you have specified illegal characters in the value of an XML node, things such as & should be escaped with their &amp; counterpart.