java.lang.NullPointerException at org.netbeans.modules.visualweb.designer.jsf.JsfForm.getMarkupFile(JsfForm.java:2931) at org.netbeans.modules.visualweb.designer.jsf.JsfForm.getJspDataObject(JsfForm.java:1922) at org.netbeans.modules.visualweb.designer.jsf.DesignerServiceHackImpl.getExternalFormFileForElement(DesignerServiceHackImpl.java:1543) at org.netbeans.modules.visualweb.insync.action.BrowserPreview.dump(BrowserPreview.java:312) at org.netbeans.modules.visualweb.insync.action.BrowserPreview.dump(BrowserPreview.java:482) at org.netbeans.modules.visualweb.insync.action.BrowserPreview.dump(BrowserPreview.java:482) at org.netbeans.modules.visualweb.insync.action.BrowserPreview.dump(BrowserPreview.java:482) at org.netbeans.modules.visualweb.insync.action.BrowserPreview.dump(BrowserPreview.java:482) at org.netbeans.modules.visualweb.insync.action.BrowserPreview.dump(BrowserPreview.java:482) at org.netbeans.modules.visualweb.insync.action.BrowserPreview.preview(BrowserPreview.java:233) at org.netbeans.modules.visualweb.insync.action.BrowserPreviewAction.performAction(BrowserPreviewAction.java:94) at org.netbeans.modules.visualweb.spi.designtime.idebridge.action.AbstractDesignBeanAction$DelegateAction.actionPerformed(AbstractDesignBeanAction.java:191) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1849) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2169) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236) at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:231) at java.awt.Component.processMouseEvent(Component.java:5517) at javax.swing.JComponent.processMouseEvent(JComponent.java:3135) at org.openide.awt.ToolbarButton.processMouseEvent(ToolbarButton.java:61) at java.awt.Component.processEvent(Component.java:5282) at java.awt.Container.processEvent(Container.java:1966) at java.awt.Component.dispatchEventImpl(Component.java:3984) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3819) at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4212) at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:3892) at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:3822) at java.awt.Container.dispatchEventImpl(Container.java:2010) at java.awt.Window.dispatchEventImpl(Window.java:1791) at java.awt.Component.dispatchEvent(Component.java:3819) at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)