AnnotationConfiguration problems using eclipse wtp

pulse00 · **Joined:** Wed Mar 11, 2009 1:04 pm **Posts:** 9

I'm having troubles creating a console configuration for my project using the eclipse hibernate tools. The project is a WebToolsProject in eclipse, using spring and hibernate. My hibernate configuration is Annotation Based, so i've chosen "Annotations" in the new console configuration wizard. Also, i've added the WEB-INF/classes folder (which holds my classes) to the classpath in the wizard. However, i keep getting a "ClassNotFoundException" when i finish the console configuration wizard (the classes which can't be found are my entity beans defined in the hibernate.cfg.xml).

Is there anything else i need to do to make hibernate tools find my classes in the classpath ?

thanks !

max · **Posted:** Tue May 26, 2009 5:01 am

Editing the classpath of the Console Configuration is the last resort - just set the related project to the project of your entities and it should work.( remember to reset the classpath if you change it on a CC you already changed)

pulse00 · **Joined:** Wed Mar 11, 2009 1:04 pm **Posts:** 9

All my classes are in the same project, i've already set the Project in the CC, if that's what you mean, but i'm not quite sure if i understand you right where to set the related project.

max · **Posted:** Tue May 26, 2009 7:47 am

Console Configuration have a project field on the first page.

if you dont see that then you might be using a *very* old version of the plugin (i.e. 2+ years :)

pulse00 · **Joined:** Wed Mar 11, 2009 1:04 pm **Posts:** 9

i have set the Project field in the first page of the wizard to the my project of course ;)

the update site from which i've installed the plugin is the following:

http://download.jboss.org/jbosstools/updates/stable/

All i did is to set the Project in the first page of the wizard, then i've set an existing hibernate config file:

Code:

<?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.password">password</property>
        <property name="hibernate.connection.url">jdbc:mysql://localhost/testDB</property>
        <property name="hibernate.connection.username">user</property>
        <property name="hibernate.dialect">org.hibernate.dialect.MySQLInnoDBDialect</property>
        
        <mapping class="com.example.model.Entity1/>
        <!-- further mapping classes ... -->
    </session-factory>
</hibernate-configuration>

Plus i've set the Type to "Annotations (jdk 1.5+)"

The exact type of the eclipse project is a combined Java/Flex project using WTP (Adobe Flex Builder 3).

Some weeks ago i have already had a working CC for this type of project, but it did not use Annotations but Mapping files.

No idea why the plugin won't find my classes though.

max · **Posted:** Thu May 28, 2009 4:42 am

Any errors in Error log or ?

pulse00 · **Joined:** Wed Mar 11, 2009 1:04 pm **Posts:** 9

This is what i get inside eclipse when i rebuild the configuration:

Code:

org.hibernate.console.HibernateConsoleRuntimeException: Could not load AnnotationConfiguration
Could not load AnnotationConfiguration
  org.hibernate.MappingException: Unable to load class declared as <mapping class="net.dubture.model.Album"/> in the configuration:
  Unable to load class declared as <mapping class="net.dubture.model.Album"/> in the configuration:
    org.hibernate.MappingException: Unable to load class declared as <mapping class="net.dubture.model.Album"/> in the configuration:
    Unable to load class declared as <mapping class="net.dubture.model.Album"/> in the configuration:
    java.lang.ClassNotFoundException: net.dubture.model.Album
    net.dubture.model.Album

And this is from the eclipse log file (which is pretty much the same i think):

Code:

org.hibernate.console.HibernateConsoleRuntimeException: Could not load AnnotationConfiguration
        at org.hibernate.console.ConsoleConfiguration.buildConfiguration(ConsoleConfiguration.java:630)
        at org.hibernate.console.ConsoleConfiguration.access$0(ConsoleConfiguration.java:619)
        at org.hibernate.console.ConsoleConfiguration$2.execute(ConsoleConfiguration.java:287)
        at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:64)
        at org.hibernate.console.ConsoleConfiguration.buildWith(ConsoleConfiguration.java:269)
        at org.hibernate.console.ConsoleConfiguration.build(ConsoleConfiguration.java:112)
        at org.hibernate.eclipse.console.workbench.ConsoleConfigurationWorkbenchAdapter.getChildren(ConsoleConfigurationWorkbenchAdapter.java:40)
        at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.getChildren(BasicWorkbenchAdapter.java:99)
        at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.fetchDeferredChildren(BasicWorkbenchAdapter.java:105)
        at org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:234)
        at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: org.hibernate.MappingException: Unable to load class declared as <mapping class="net.dubture.model.Album"/> in the configuration:
        at org.hibernate.cfg.AnnotationConfiguration.parseMappingElement(AnnotationConfiguration.java:602)
        at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1555)
        at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1534)
        at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1508)
        at org.hibernate.cfg.Configuration.configure(Configuration.java:1462)
        at org.hibernate.console.ConsoleConfiguration.loadConfigurationXML(ConsoleConfiguration.java:405)
        at org.hibernate.console.ConsoleConfiguration.configureStandardConfiguration(ConsoleConfiguration.java:672)
        at org.hibernate.console.ConsoleConfiguration.buildConfiguration(ConsoleConfiguration.java:624)
        ... 10 more
Caused by: java.lang.ClassNotFoundException: net.dubture.model.Album
        at org.eclipse.osgi.framework.internal.core.BundleLoader.findClassInternal(BundleLoader.java:483)
        at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:399)
        at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:387)
        at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:87)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:374)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:164)
        at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:100)
        at org.hibernate.cfg.AnnotationConfiguration.parseMappingElement(AnnotationConfiguration.java:599)
        ... 17 more

mcheung · **Joined:** Fri Jun 05, 2009 2:28 pm **Posts:** 1

I have the exact same problem. I had annotations (jdk 1.5+) choosen, my projects and configuration are defined. Click rebuild configuration and throw this error. I am using a mac, not sure if that matters.

Code:

<?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 name="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
       <property name="hibernate.connection.url">jdbc:mysql://example/development</property>
        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>        
        <property name="hibernate.connection.password">******</property>
        <property name="hibernate.connection.username">username</property>
        <property name="hibernate.default_schema">development</property>
        <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
        
        <property name="hibernate.show_sql">true</property>
   
        <mapping class="x.y.pojo.common.UserProfile" />
              
    </session-factory>
</hibernate-configuration>

org.hibernate.console.HibernateConsoleRuntimeException: Could not load AnnotationConfiguration
   at org.hibernate.console.ConsoleConfiguration.buildConfiguration(ConsoleConfiguration.java:533)
   at org.hibernate.console.ConsoleConfiguration.access$0(ConsoleConfiguration.java:522)
   at org.hibernate.console.ConsoleConfiguration$2.execute(ConsoleConfiguration.java:218)
   at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:64)
   at org.hibernate.console.ConsoleConfiguration.buildWith(ConsoleConfiguration.java:200)
   at org.hibernate.console.ConsoleConfiguration.build(ConsoleConfiguration.java:111)
   at org.hibernate.eclipse.console.workbench.ConsoleConfigurationWorkbenchAdapter.getChildren(ConsoleConfigurationWorkbenchAdapter.java:40)
   at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.getChildren(BasicWorkbenchAdapter.java:99)
   at org.hibernate.eclipse.console.workbench.BasicWorkbenchAdapter.fetchDeferredChildren(BasicWorkbenchAdapter.java:105)
   at org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:234)
   at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: org.hibernate.MappingException: Unable to load class declared as <mapping class="x.y.pojo.common.UserProfile"/> in the configuration:
   at org.hibernate.cfg.AnnotationConfiguration.parseMappingElement(AnnotationConfiguration.java:602)
   at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1555)
   at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1534)
   at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1508)
   at org.hibernate.cfg.Configuration.configure(Configuration.java:1462)
   at org.hibernate.console.ConsoleConfiguration.loadConfigurationXML(ConsoleConfiguration.java:331)
   at org.hibernate.console.ConsoleConfiguration.configureStandardConfiguration(ConsoleConfiguration.java:575)
   at org.hibernate.console.ConsoleConfiguration.buildConfiguration(ConsoleConfiguration.java:527)
   ... 10 more
Caused by: java.lang.ClassNotFoundException: x.y.pojo.common.UserProfile
   at org.eclipse.osgi.framework.internal.core.BundleLoader.findClassInternal(BundleLoader.java:483)
   at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:399)
   at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:387)
   at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:87)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
   at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:374)
   at java.lang.Class.forName0(Native Method)
   at java.lang.Class.forName(Class.java:164)
   at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:100)
   at org.hibernate.cfg.AnnotationConfiguration.parseMappingElement(AnnotationConfiguration.java:599)
   ... 17 more

pulse00 · **Joined:** Wed Mar 11, 2009 1:04 pm **Posts:** 9

i'm using a mac too, guess this could narrow down the issue a bit.

max · **Posted:** Tue Jun 09, 2009 4:30 am

is the class actually built ?

is the classpath correct ?

akh · **Joined:** Thu Jul 02, 2009 5:28 am **Posts:** 1

I had had exactly the same problem. It turned out that I had eclipse run with 1.5 jre. but my project was compiled with compiler compliance level equal to 1.6. I solved the problem by running eclipse on jre 1.6. Hope it helps somebody.

gusvmx · **Joined:** Thu Jul 02, 2009 2:19 pm **Posts:** 1

akh wrote:

I had had exactly the same problem. It turned out that I had eclipse run with 1.5 jre. but my project was compiled with compiler compliance level equal to 1.6. I solved the problem by running eclipse on jre 1.6. Hope it helps somebody.

It seems that if the mapping classes are compiled in a newer JVM than the eclipse's one, the CC throws the ClassNotFoundException. I solved the problem as akh did, putting the same JVM to the eclipse and the eclipse's java compiler. Hope it helps