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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)