Hi, I just downloaded jbdevstudio-eap-linux-gtk-x86_64, checked out a Seam project, opened a .xhtml file and got:

Unhandled event loop exception

java.lang.NullPointerException
at org.jboss.tools.vpe.editor.util.VpeStyleUtil.processUrl(VpeStyleUtil.java:846)
at org.jboss.tools.vpe.editor.util.VpeStyleUtil.addFullPathIntoURLValue(VpeStyleUtil.java:549)
at org.jboss.tools.vpe.editor.VpeVisualDomBuilder.createLinkNode(VpeVisualDomBuilder.java:1422)
at org.jboss.tools.vpe.editor.VpeVisualDomBuilder.addLinkNodeToHead(VpeVisualDomBuilder.java:1357)
at org.jboss.tools.vpe.editor.template.VpeLinkCreator.create(VpeLinkCreator.java:75)
at org.jboss.tools.vpe.editor.template.VpeHtmlTemplate.createVisualElement(VpeHtmlTemplate.java:203)
at org.jboss.tools.vpe.editor.template.VpeHtmlTemplate.create(VpeHtmlTemplate.java:152)
at org.jboss.tools.vpe.editor.VpePreviewDomBuilder.createNode(VpePreviewDomBuilder.java:91)
at org.jboss.tools.vpe.editor.VpeVisualDomBuilder.addNode(VpeVisualDomBuilder.java:272)
at org.jboss.tools.vpe.editor.VpeVisualDomBuilder.addChildren(VpeVisualDomBuilder.java:632)
at org.jboss.tools.vpe.editor.VpePreviewDomBuilder.createNode(VpePreviewDomBuilder.java:112)
at org.jboss.tools.vpe.editor.VpeVisualDomBuilder.addNode(VpeVisualDomBuilder.java:272)
at org.jboss.tools.vpe.editor.VpeVisualDomBuilder.addChildren(VpeVisualDomBuilder.java:632)
at org.jboss.tools.vpe.editor.VpePreviewDomBuilder.createNode(VpePreviewDomBuilder.java:112)
at org.jboss.tools.vpe.editor.VpeVisualDomBuilder.addNode(VpeVisualDomBuilder.java:272)
at org.jboss.tools.vpe.editor.VpeVisualDomBuilder.addChildren(VpeVisualDomBuilder.java:659)
at org.jboss.tools.vpe.editor.VpePreviewDomBuilder.createNode(VpePreviewDomBuilder.java:114)
at org.jboss.tools.vpe.editor.VpeVisualDomBuilder.addNode(VpeVisualDomBuilder.java:272)
at org.jboss.tools.vpe.editor.VpeVisualDomBuilder.buildDom(VpeVisualDomBuilder.java:218)
at org.jboss.tools.vpe.editor.VpeVisualDomBuilder.rebuildDom(VpeVisualDomBuilder.java:248)
at org.jboss.tools.vpe.editor.mozilla.MozillaPreview.rebuildDom(MozillaPreview.java:167)
at org.jboss.tools.vpe.editor.VpeEditorPart.setVisualMode(VpeEditorPart.java:437)
at org.jboss.tools.jst.jsp.jspeditor.JSPMultiPageEditor.pageChange(JSPMultiPageEditor.java:257)
at org.jboss.tools.jst.jsp.jspeditor.JSPMultiPageEditorPart$2.widgetSelected(JSPMultiPageEditorPart.java:106)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:228)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1158)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1182)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1167)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1007)
at org.eclipse.swt.custom.CTabFolder.setSelection(CTabFolder.java:3242)
at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:2017)
at org.eclipse.swt.custom.CTabFolder$1.handleEvent(CTabFolder.java:320)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1158)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3401)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3033)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2384)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2348)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2200)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:495)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:490)
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:386)
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:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
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)
at org.eclipse.equinox.launcher.Main.main(Main.java:1212)

eclipse.buildId=M20090211-1700
java.version=1.5.0_17
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
Command-line arguments: -os linux -ws gtk -arch x86_64