Hi,
Sorry if this seems like a rudimentary problem. I am new to Hibernate. I am running tools (JBossIDE-1.5M1-jre15-ALL.zip) using Hibernate Console. I get the error ("Unsupported major.minor version 49.0") while trying to auto generate .java and while trying to run "Create SessionFactory" from Hibernate Console. I have been reading these web sites, trying to resolve this issue for over 5 days. Any assistance would be appreciated.
Thanks.

Hibernate version: 3.0.1

Mapping documents:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
<hibernate-mapping>
<class name="com.vai.cms.domain.EquipmentCharacteristic" table="TBL_EQUIPMENT_CHARACTERISTIC">
<composite-id>
<key-many-to-one name="equipmentId" class="com.vai.cms.domain.Equipment" column="EQUIPMENT_NO"/>
<key-many-to-one name="categoryId" class="com.vai.cms.domain.Category" column="CATEGORY_NO"/>
</composite-id>
<property name="name" type="java.lang.String" column="NAME" length="127"/>
<property name="value" type="java.lang.String" column="VALUE" length="127"/>
<property name="javatype" type="java.lang.String" column="JAVATYPE" length="127"/>
</class>
</hibernate-mapping>

Full stack trace of any exception that occurs:
java.lang.UnsupportedClassVersionError: com/vai/cms/domain/EquipmentCharacteristic (Unsupported major.minor version 49.0)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:102)
at org.hibernate.mapping.Component.getComponentClass(Component.java:98)
at org.hibernate.cfg.HbmBinder.bindCompositeId(HbmBinder.java:406)
at org.hibernate.cfg.HbmBinder.bindRootPersistentClassCommonValues(HbmBinder.java:297)
at org.hibernate.cfg.HbmBinder.bindRootClass(HbmBinder.java:235)
at org.hibernate.cfg.HbmBinder.bindRoot(HbmBinder.java:151)
at org.hibernate.cfg.Configuration.add(Configuration.java:358)
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:395)
at org.hibernate.cfg.Configuration.addFile(Configuration.java:241)
at org.hibernate.console.ConsoleConfiguration.buildWith(ConsoleConfiguration.java:163)
at org.hibernate.console.ConsoleConfiguration.build(ConsoleConfiguration.java:129)
at org.hibernate.eclipse.console.actions.BuildSessionFactoryAction.doRun(BuildSessionFactoryAction.java:50)
at org.hibernate.eclipse.console.actions.ConsoleConfigurationBasedAction.run(ConsoleConfigurationBasedAction.java:47)
at org.eclipse.ui.actions.BaseSelectionListenerAction.runWithEvent(BaseSelectionListenerAction.java:167)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:557)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:507)
at org.eclipse.jface.action.ActionContributionItem$6.handleEvent(ActionContributionItem.java:421)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:842)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2908)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2541)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1612)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1578)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:293)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:144)
at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:102)
at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:228)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:333)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:150)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.core.launcher.Main.invokeFramework(Main.java:268)
at org.eclipse.core.launcher.Main.basicRun(Main.java:260)
at org.eclipse.core.launcher.Main.run(Main.java:887)
at org.eclipse.core.launcher.Main.main(Main.java:871)


Name and version of the database you are using:
Oracle 9i

your eclipse is running with a jdk 1.4 VM and your app classes are 1.5 only, so we cant load them.

run eclipse with jdk 1.5 to run with this scenario.

note: i've added a better error message for this scenario.

I'm getting the same error but the solution you give is no solution for me.

I need to use Java 1.4 and cannot move to 1.5. My unit tests work and
everything is fine using 1.4 except I can no longer create a Hibernate
Configuration. I had them created a few hours ago and then changed
some things and am now getting this error. I have not changed the
code to use anything java 1.5 specific.

Any ideas?

this thread is about someone using jdk 5 compiled classes with a jdk 1.4 runtime - nothing more, nothing less.

thus if you have the same error your code is compiled for jdk 5 and should be run as such.

It looks like it is possible to use JDK 5.0 compiled classes with a JDK 1.4 runtime:
http://sourceforge.net/forum/forum.php? ... _id=513539
http://sourceforge.net/forum/message.php?msg_id=3526452

so you want me to create 2 different distributions of the plugins just so you don't need to start eclipse with jdk 5 ?

I don't think so ;)