Hibernate App Issue

[Srinivas Nagesh]

Hi,

I am very new to Hibernate and following the tutorial in this link to learn hibernate

Hibernate Tutorial

When i run the command

ant run -Daction=store

I get the following exception. I am not sure what the issue is about. Please help!

BTW i am using

JDK 6
Hibernate 3.2

Buildfile: D:\dev\hibernateApp\build.xml
clean:
   [delete] Deleting directory D:\dev\hibernateApp\classes
    [mkdir] Created dir: D:\dev\hibernateApp\classes
copy-resources:
     [copy] Copying 2 files to D:\dev\hibernateApp\classes
     [copy] Copied 2 empty directories to 1 empty directory under D:\dev\hibernateApp\classes
compile:
    [javac] Compiling 3 source files to D:\dev\hibernateApp\classes
run:
     [java] log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).
     [java] log4j:WARN Please initialize the log4j system properly.
     [java] Initial SessionFactory creation failed.org.hibernate.InvalidMappingException: Could not parse mapping document from resource events/Event.hbm.xml
     [java] Exception in thread "main" java.lang.ExceptionInInitializerError
     [java] at util.HibernateUtil.<clinit>(Unknown Source)
     [java] at events.EventManager.createAndStoreEvent(Unknown Source)
     [java] at events.EventManager.main(Unknown Source)
     [java] Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from resource events/Event.hbm.xml
     [java] at org.hibernate.cfg.Configuration.addResource(Configuration.java:569)
     [java] at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1587)
     [java] at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1555)
     [java] at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1534)
     [java] at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1508)
     [java] at org.hibernate.cfg.Configuration.configure(Configuration.java:1428)
     [java] at org.hibernate.cfg.Configuration.configure(Configuration.java:1414)
     [java] ... 3 more
     [java] Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from invalid mapping
     [java] at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:502)
     [java] at org.hibernate.cfg.Configuration.addResource(Configuration.java:566)
     [java] ... 9 more
     [java] Caused by: org.xml.sax.SAXParseException: Document is invalid: no grammar found.
     [java] at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:195)
     [java] at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:131)
     [java] at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:384)
     [java] at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:318)
     [java] at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:250)
     [java] at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSContentDriver.scanRootElementHook(XMLNSDocumentScannerImpl.java:626)
     [java] at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:3084)
     [java] at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:912)
     [java] at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:645)
     [java] at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:140)
     [java] at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:508)
     [java] at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:807)
     [java] at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
     [java] at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:107)
     [java] at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205)
     [java] at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522)
     [java] at org.dom4j.io.SAXReader.read(SAXReader.java:465)
     [java] at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:499)
     [java] ... 10 more
     [java] Java Result: 1
BUILD SUCCESSFUL
Total time: 2 seconds
    

[Mark Spritzler]

There is something wrong with your hibernate.cfg.xml file. It might be missing the header stuff.

Please post your hibernate.cfg.xml or if you are using JPA, then your persistence.xml. And under the Add Reply button on our site there are ten buttons, use the one labeled "CODE" so that you can put your xml in between the CODE tags that get produced so that the xml keeps its indentation.

Thanks

Mark

[Srinivas Nagesh]

I looked into the config and couldnt find any wrong with it. Here it goes.

<?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>
 
        <!-- Database connection settings -->
        <property name="connection.driver_class">org.hsqldb.jdbcDriver</property>
        <property name="connection.url">jdbc:hsqldb:hsql://localhost</property>
        <property name="connection.username">sa</property>
        <property name="connection.password"></property>
 
        <!-- JDBC connection pool (use the built-in) -->
        <property name="connection.pool_size">1</property>
 
        <!-- SQL dialect -->
        <property name="dialect">org.hibernate.dialect.HSQLDialect</property>
 
        <!-- Enable Hibernate's automatic session context management -->
        <property name="current_session_context_class">thread</property>
 
        <!-- Disable the second-level cache  -->
        <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
 
        <!-- Echo all executed SQL to stdout -->
        <property name="show_sql">true</property>
 
        <!-- Drop and re-create the database schema on startup -->
        <property name="hbm2ddl.auto">create</property>
 
        <mapping resource="events/Event.hbm.xml"/>
 
    </session-factory>
 
</hibernate-configuration>

[ October 02, 2007: Message edited by: Srinivas Nagesh ]

[Edvins Reisons]

From what I see in the exception stack, it is the mapping file events/Event.hbm.xml that has a wrong format.

[Srinivas Nagesh]

Here is the events hbm file from the tutorial:

 
<hibernate-mapping>
 
    <class name="events.Event" table="EVENTS">
        <id name="id" column="EVENT_ID">
            <generator class="native"/>
        </id>
        <property name="date" type="timestamp" column="EVENT_DATE"/>
        <property name="title"/>
    </class>
 
</hibernate-mapping>   

[Edvins Reisons]

From the same tutorial, add this to the top of the mapping file:

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

[Mark Spritzler]

Thanks Edvins. I got really busy and wasn't able to look back on this thread, and it is always great when another rancher can step in help out in these cases.

Mark

[Srinivas Nagesh]

Really sorry for wasting all your time on this. Such a silly mistake.

Thanks a ton.

[Mark Spritzler]

Originally posted by Srinivas Nagesh:


Really sorry for wasting all your time on this. Such a silly mistake.

Thanks a ton.

Not at all, I find my "silly" mistakes is where I learn more than anywhere else.

Mark