java.lang.NullPointerException

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    • java.lang.NullPointerException at javax.swing.LookAndFeel.uninstallBorder(Unknown Source) at javax.swing.plaf.basic.BasicScrollPaneUI.uninstallDefaults(Unknown Source) at javax.swing.plaf.basic.BasicScrollPaneUI.uninstallUI(Unknown Source) at javax.swing.plaf.metal.MetalScrollPaneUI.uninstallUI(Unknown Source) at javax.swing.JComponent.compWriteObjectNotify(Unknown Source) at javax.swing.JComponent$EnableSerializationFocusListener.writeObject(Unknown Source) at java.lang.reflect.Method.invoke(Native Method) at java.io.ObjectOutputStream.invokeObjectWriter(Unknown Source) at java.io.ObjectOutputStream.outputObject(Unknown Source) at java.io.ObjectOutputStream.writeObject(Unknown Source) at java.awt.AWTEventMulticaster.save(Unknown Source) at java.awt.Component.writeObject(Unknown Source) at java.lang.reflect.Method.invoke(Native Method) at java.io.ObjectOutputStream.invokeObjectWriter(Unknown Source) at java.io.ObjectOutputStream.outputObject(Unknown Source) at java.io.ObjectOutputStream.writeObject(Unknown Source) at java.io.ObjectOutputStream.outputArray(Unknown Source) at java.io.ObjectOutputStream.checkSubstitutableSpecialClasses(Unknown Source) at java.io.ObjectOutputStream.writeObject(Unknown Source) at java.io.ObjectOutputStream.outputClassFields(Unknown Source) at java.io.ObjectOutputStream.defaultWriteObject(Unknown Source) at java.awt.Container.writeObject(Unknown Source) at java.lang.reflect.Method.invoke(Native Method) at java.io.ObjectOutputStream.invokeObjectWriter(Unknown Source) at java.io.ObjectOutputStream.outputObject(Unknown Source) at java.io.ObjectOutputStream.writeObject(Unknown Source) at sun.beans.ole.OleBeanInterface.saveBean(Unknown Source)
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