The following exception is thrown:
Caused by: java.lang.NullPointerException at org.jboss.tools.forge.ui.notifications.NotificationDialog.calculateInitialLocation(NotificationDialog.java:80) at org.jboss.tools.forge.ui.notifications.NotificationDialog.createShell(NotificationDialog.java:68) at org.jboss.tools.forge.ui.notifications.NotificationDialog.<init>(NotificationDialog.java:55) at org.jboss.tools.forge.ui.notifications.NotificationDialog.notify(NotificationDialog.java:29) at org.jboss.tools.forge.ui.ext.wizards.ForgeWizard$1.run(ForgeWizard.java:123) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)