java.lang.NullPointerException

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    • java.lang.NullPointerException at sun.awt.X11.XMenuPeer.repaintMenuItem(XMenuPeer.java:360) at sun.awt.X11.XCheckboxMenuItemPeer.setState(XCheckboxMenuItemPeer.java:46) at java.awt.CheckboxMenuItem.setState(CheckboxMenuItem.java:177) at ij.Menus.updateMenus(Menus.java:817) at ij.WindowManager.setCurrentWindow(WindowManager.java:47) at ij.WindowManager.addImageWindow(WindowManager.java:146) at ij.WindowManager.addWindow(WindowManager.java:136) at ij.gui.ImageWindow.<init>(ImageWindow.java:67) at ij.gui.ImageWindow.<init>(ImageWindow.java:45) at ij.ImagePlus.show(ImagePlus.java:300) at ij.ImagePlus.show(ImagePlus.java:281) at ij.plugin.AboutBox.run(AboutBox.java:70) at ij.IJ.runPlugIn(IJ.java:101) at ij.Executer.runPlugIn(Executer.java:170) at ij.Executer.runCommand(Executer.java:129) at ij.Executer.run(Executer.java:62) at java.lang.Thread.run(Thread.java:595)
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