All versions of the Jboss hibernate-tools eclipse plugin fail in various ways on eclipse-3.4 (Ganymede). I have obtained various versions of the plugin via the eclipse update sites (both stable and dev) and all have various problems. I first attempted to download the latest from the stable update link (http://download.jboss.org/jbosstools/updates/stable/) . I selected the hibernate tools package for install only. It installs but is unusable. It seems to have no ill effects otherwise. When you attempt to add a hibernate configuration in the hibernate console, you get an exception similar to the followng:
java.lang.NoClassDefFoundError: org/eclipse/ui/internal/util/SWTResourceUtil
at org.hibernate.eclipse.console.workbench.xpl.AnyAdaptableLabelProvider.getImage(AnyAdaptableLabelProvider.java:166)
at org.eclipse.jface.viewers.WrappedViewerLabelProvider.getImage(WrappedViewerLabelProvider.java:117)
at org.eclipse.jface.viewers.WrappedViewerLabelProvider.update(WrappedViewerLabelProvider.java:165)
at org.eclipse.jface.viewers.ViewerColumn.refresh(ViewerColumn.java:145)
at org.eclipse.jface.viewers.AbstractTreeViewer.doUpdateItem(AbstractTreeViewer.java:932)
at org.eclipse.jface.viewers.AbstractTreeViewer$UpdateItemSafeRunnable.run(AbstractTreeViewer.java:102)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at org.eclipse.core.runtime.Platform.run(Platform.java:880)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:48)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
at org.eclipse.jface.viewers.AbstractTreeViewer.doUpdateItem(AbstractTreeViewer.java:1012)
at org.eclipse.jface.viewers.StructuredViewer$UpdateItemSafeRunnable.run(StructuredViewer.java:466)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at org.eclipse.core.runtime.Platform.run(Platform.java:880)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:48)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
at org.eclipse.jface.viewers.StructuredViewer.updateItem(StructuredViewer.java:2041)
at org.eclipse.jface.viewers.AbstractTreeViewer.createTreeItem(AbstractTreeViewer.java:827)
at org.eclipse.jface.viewers.AbstractTreeViewer.createAddedElements(AbstractTreeViewer.java:340)
at org.eclipse.jface.viewers.AbstractTreeViewer.internalAdd(AbstractTreeViewer.java:270)
at org.eclipse.jface.viewers.TreeViewer.internalAdd(TreeViewer.java:652)
at org.hibernate.eclipse.console.viewers.xpl.MTreeViewer.add(MTreeViewer.java:106)
at org.eclipse.ui.progress.DeferredTreeContentManager$3.runInUIThread(DeferredTreeContentManager.java:353)
at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:94)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:133)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3800)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3425)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2198)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:493)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:382)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
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.equinox.launcher.Main.invokeFramework(Main.java:549)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
at org.eclipse.equinox.launcher.Main.run(Main.java:1236)

I googled this error and it brought me to a hibernate jira page hosted by atlasian. That Jira page recommended using the latest hibernate tools plugin from the dev update site(http://download.jboss.org/jbosside/hibernatetools/updates/development/) so I did. Now this is where all hell brakes loose. After installing the latest version from this site and restarting eclipse, the JEE perspective is completely disabled. JSP files open in a regular text editor and all attempts to update eclipse fail with this exception:

Cannot complete the request. See the details.
Cannot find a solution where both Match[requiredCompatibility:
org.eclipse.equinox.p2.iu/org.eclipse.emf.ecore.xml/[2.1.0,2.1.0]] and Match[requiredCompatability:
....


  In short there is no usable version of hibernate tools for eclipse-3.4.