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This exception has no message.
java.lang.NullPointerException: 	at xdev.eclipse.internal.vaadin.model.DefaultBeanInfo.getDefaultValue(DefaultBeanInfo.java:676)	at xdev.eclipse.internal.vaadin.model.Bean.getValueImpl(Bean.java:855)	at xdev.eclipse.internal.vaadin.model.Bean.getValue(Bean.java:829)	at xdev.eclipse.internal.vaadin.model.Bean.getConstraints(Bean.java:737)	at xdev.eclipse.internal.vaadin.ui.editor.VaadinDesigner.adjustRootSizeImpl(VaadinDesigner.java:1725)	at xdev.eclipse.internal.vaadin.ui.editor.VaadinDesigner.lambda$17(VaadinDesigner.java:1697)	at xdev.eclipse.internal.vaadin.ui.editor.VaadinDesigner.adjustRootSize(VaadinDesigner.java:1708)	at xdev.eclipse.internal.vaadin.ui.editor.VaadinDesigner.createUI(VaadinDesigner.java:824)	at xdev.eclipse.internal.vaadin.ui.editor.VaadinDesigner.loadContents_createUI(VaadinDesigner.java:764)	at xdev.eclipse.internal.vaadin.ui.editor.VaadinDesigner.lambda$9(VaadinDesigner.java:701)	at xdev.eclipse.internal.core.ui.editor.multi.SwingDesignPart.invokeUIActionImpl(SwingDesignPart.java:80)	at xdev.eclipse.internal.core.ui.editor.multi.SwingDesignPart.lambda$0(SwingDesignPart.java:69)	at java.awt.event.InvocationEvent.dispatch(Unknown Source)	at java.awt.EventQueue.dispatchEventImpl(Unknown Source)	at java.awt.EventQueue.access$500(Unknown Source)	at ava.awt.EventQueue$3.run(Unknown Source)	at java.awt.EventQueue$3.run(Unknown Source)	at java.security.AccessController.doPrivileged(Native Method)	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)	at java.awt.EventQueue.dispatchEvent(Unknown Source)	at xdev.eclipse.internal.core.ui.swing.XdevEventQueue.dispatchEvent(XdevEventQueue.java:138)	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)	at java.awt.EventDispatchThread.pumpEvents(UnknownSource)	at java.awt.EventDispatchThread.run(Unknown Source)