ERROR on netbeans :Unable to perform unmarshalling at line number 0 and column 0 in RESOURCE hibernate.cfg.xml

Hi Anshika,

I was getting the same error. The problem was that I had placed the 'show_sql' property at the end of the hibernate.cgf.xml file, like this:

<hibernate-configuration> <session-factory> <!-- Database connection setting--> <property name="connection.driver_class">org.h2.Driver</property> <property name="connection.url">jdbc:h2:./data/contactmgr</property>

    <!-- SQL dialect -->
    <property name="dialect">org.hibernate.dialect.H2Dialect</property>

    <!-- Create database schema on application startup-->
    <property name="hbm2ddl.auto">create</property>


    <!-- Names the annotated entity classes -->
    <mapping class="com.rodrigo.contactmgr.model.Contact"/>

    <!-- show the queries prepared by Hibernate-->               <------ THE PROBLEM WAS HERE
    <property name="show_sql">true</property>

</session-factory>

</hibernate-configuration>

I solved the problem by placing the 'show_sql' property right after the 'hbm2ddl.auto' property, like this:

<hibernate-configuration> <session-factory> <!-- Database connection setting--> <property name="connection.driver_class">org.h2.Driver</property> <property name="connection.url">jdbc:h2:./data/contactmgr</property>

    <!-- SQL dialect -->
    <property name="dialect">org.hibernate.dialect.H2Dialect</property>

    <!-- Create database schema on application startup-->
    <property name="hbm2ddl.auto">create</property>

    <!-- show the queries prepared by Hibernate-->        <----------- PLACED IT HERE
    <property name="show_sql">true</property>

    <!-- Names the annotated entity classes -->
    <mapping class="com.rodrigo.contactmgr.model.Contact"/>

</session-factory>

</hibernate-configuration>

Hope it helps.

It looks like you have some syntax problems in your hibernate.cfg.xml file...

Have you tried solutions in Stack? Take a look at answer here:

http://stackoverflow.com/questions/32499073/error-in-configuring-hibernate-5-0-1-and-mysql

Could you push project on GitHub, or at least just hibernate.cfg.xml file...

I have the same problem. In fact i had typo in hibernate.cfg.xml file. Call one field as proprety. Check it first

Just joined here recently, I also ran into this problem and it took some time to solve but here is a fix for those using java 8 and up.

Make sure to include the following dependencies

 compile 'javax.xml.bind:jaxb-api:2.3.0'

// https://mvnrepository.com/artifact/com.sun.xml.bind/jaxb-impl
compile group: 'com.sun.xml.bind', name: 'jaxb-impl', version: '2.3.0'

// https://mvnrepository.com/artifact/com.sun.xml.bind/jaxb-core
compile group: 'com.sun.xml.bind', name: 'jaxb-core', version: '2.3.0'

// https://mvnrepository.com/artifact/javax.activation/activation
compile group: 'javax.activation', name: 'activation', version: '1.1.1'

Had the same error. To resolve it I had to 'escape' the ampersand & sign with &amp in my database url. Even if you have your character set encoding set to utf-8, that won't work, simply because xml uses & as a predefined character.

I hope this's been helpful!