NPE in HibernateExtension4_0.executeHQLQuery() when trying M5a and Hibernate 4

I tried JBossTools M5a from http://download.jboss.org/jbosstools/builds/development/3.3.0.M5a.core/2011-12-14_19-42-13-H61 using Hibernate 4 and got a NPE:

java.lang.NullPointerException
at org.jboss.tools.hibernate4_0.HibernateExtension4_0.executeHQLQuery(HibernateExtension4_0.java:78)
at org.hibernate.console.ext.HQLQueryPage.updateQueryResults(HQLQueryPage.java:47)
at org.hibernate.console.ext.HQLQueryPage.getPathNames(HQLQueryPage.java:71)
at org.hibernate.eclipse.console.views.QueryPageViewer.addColumnsToTable(QueryPageViewer.java:266)
at org.hibernate.eclipse.console.views.QueryPageViewer.createTable(QueryPageViewer.java:221)
at org.hibernate.eclipse.console.views.QueryPageViewer.createControl(QueryPageViewer.java:203)
at org.hibernate.eclipse.console.views.QueryPageViewer.<init>(QueryPageViewer.java:160)
at org.hibernate.eclipse.console.views.QueryPageTabView.rebuild(QueryPageTabView.java:109)
at org.hibernate.eclipse.console.views.QueryPageTabView$1.contentsChanged(QueryPageTabView.java:75)
at org.hibernate.eclipse.console.views.QueryPageTabView$1.intervalAdded(QueryPageTabView.java:85)
at javax.swing.AbstractListModel.fireIntervalAdded(AbstractListModel.java:148)
at org.hibernate.console.QueryPageModel.add(QueryPageModel.java:67)
at org.hibernate.console.KnownConfigurations$1.queryPageCreated(KnownConfigurations.java:88)
at org.hibernate.console.ConsoleConfiguration.fireQueryPageCreated(ConsoleConfiguration.java:326)
at org.hibernate.console.ConsoleConfiguration.executeHQLQuery(ConsoleConfiguration.java:291)
at org.hibernate.eclipse.hqleditor.HQLEditor.executeQuery(HQLEditor.java:449)
at org.hibernate.eclipse.console.actions.ExecuteQueryAction.execute(ExecuteQueryAction.java:84)
at org.hibernate.eclipse.console.actions.ExecuteQueryAction.run(ExecuteQueryAction.java:55)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
at org.hibernate.eclipse.console.actions.ExecuteQueryAction.runWithEvent(ExecuteQueryAction.java:59)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)
at org.eclipse.jface.action.ActionContributionItem$6.handleEvent(ActionContributionItem.java:452)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
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:344)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
at org.eclipse.equinox.launcher.Main.run(Main.java:1410)