XPStyle Skin.getWidth NullPointerException

Example Error

Stack=java.lang.NullPointerException
        at com.sun.java.swing.plaf.windows.XPStyle$Skin.getWidth(Unknown Source)
        at com.sun.java.swing.plaf.windows.XPStyle$Skin.getWidth(Unknown Source)
        at com.sun.java.swing.plaf.windows.WindowsIconFactory$VistaMenuItemCheckIconFactory.getIconWidth(Unknown Source)
        at com.sun.java.swing.plaf.windows.WindowsLookAndFeel$1.createValue(Unknown Source)
        at com.sun.java.swing.plaf.windows.WindowsLookAndFeel$XPValue.recursiveCreateValue(Unknown Source)
        at com.sun.java.swing.plaf.windows.WindowsLookAndFeel$XPValue.getXPValue(Unknown Source)
        at com.sun.java.swing.plaf.windows.WindowsLookAndFeel$XPValue.createValue(Unknown Source)
        at javax.swing.UIDefaults.getFromHashtable(Unknown Source)
        at javax.swing.UIDefaults.get(Unknown Source)
        at javax.swing.MultiUIDefaults.get(Unknown Source)
        at javax.swing.UIManager.get(Unknown Source)
        at sun.swing.MenuItemLayoutHelper.getMinTextOffset(Unknown Source)
        at sun.swing.MenuItemLayoutHelper.reset(Unknown Source)
        at sun.swing.MenuItemLayoutHelper.<init>(Unknown Source)
		...

Issue

It is likely due to an attempted theme change or logging in from a remote desktop.

Solution

This is a known java issue, reported in a number of places. The suggested workaround for now is to restart QStudio.