java - At a complete loss: mapping a simple entity via Hibernate -

i can't figure out why object not map via annotations. no matter try, receive error:

org.hibernate.mappingexception: unknown entity: com.hibernate.practice.car 

i loosely following tutorial here can't seem working. i've tried strip object down bare bones (thinking making error in code somewhere), again, id, , name column, still fail working.

my hibernate.cfg netbeans hibernate tutorial.

<?xml version="1.0" encoding="utf-8"?> <!doctype hibernate-configuration public "-//hibernate/hibernate configuration dtd 3.0//en" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> <hibernate-configuration>   <session-factory>     <property name="hibernate.connection.driver_class">com.mysql.jdbc.driver</property>     <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/practicedb?zerodatetimebehavior=converttonull</property>     <property name="hibernate.connection.username">root</property>     <property name="hibernate.connection.password">pass</property>     <property name="hibernate.dialect">org.hibernate.dialect.mysqldialect</property>     <property name="hibernate.show_sql">true</property>     <property name="hibernate.hbm2ddl.auto">create</property>     <property name="hibernate.current_session_context_class">thread</property>   </session-factory> </hibernate-configuration> 

also, per instructions, i've added hibernateutil.java class.

public class hibernateutil {    private static final sessionfactory sessionfactory;    static {     try {             // create sessionfactory standard (hibernate.cfg.xml)        // config file.       sessionfactory = new annotationconfiguration().configure().addpackage("com.hibernate.practice").buildsessionfactory();     } catch (throwable ex) {       // log exception.        system.err.println("initial sessionfactory creation failed." + ex);       throw new exceptionininitializererror(ex);     }   }    public static sessionfactory getsessionfactory() {     return sessionfactory;   } } 

i set simple class. it's car id , name.

@entity public class car {   @id   @generatedvalue   @genericgenerator(name="increment", strategy="incrememnt")   private long id;     @column(name="car_name")   private string name;     public car() {   }    public long getid() {     return id;   }    public void setid(long id) {     this.id = id;   }    public string getname() {     return name;   }    public void setname(string name) {     this.name = name;   }      } 

and finally, i'm trying test stuff out this:

@test    public void testouthibernate() {     sessionfactory factory = hibernateutil.getsessionfactory();     session session = factory.opensession();      car car = new car();     car.setname("red one");     session.save(car);       try {       transaction t = session.begintransaction();       session.save(car);       t.commit();     }      {       session.close();     }     session.close();    } 

without fail unknown entity exception. there glaringly obvious i'm missing?

you need add annotated class follows -

sessionfactory = new annotationconfiguration()                       .addannotatedclass(car.class)                       .addpackage("com.hibernate.practice")                       .configure()                       .buildsessionfactory(); 

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you can find discussion regarding addpackage() method here - https://forum.hibernate.org/viewtopic.php?f=1&t=980723.