Switch to the Threads tab and try shrinking the window. When the window width becomes smaller than some particular size, the following exception is printed to the terminal on every window update:

Exception in thread "AWT-EventQueue-0" java.lang.ArithmeticException: / by zero
        at sun.tools.jconsole.Plotter.calculateTickInterval(Plotter.java:546)
        at sun.tools.jconsole.Plotter.paintComponent(Plotter.java:357)
        at javax.swing.JComponent.paint(JComponent.java:975)
        at javax.swing.JComponent.paintChildren(JComponent.java:811)
        at javax.swing.JComponent.paint(JComponent.java:984)
        at javax.swing.JComponent.paintToOffscreen(JComponent.java:5077)
        at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:279)
        at javax.swing.RepaintManager.paint(RepaintManager.java:1079)
        at javax.swing.JComponent._paintImmediately(JComponent.java:5025)
        at javax.swing.JComponent.paintImmediately(JComponent.java:4843)
        at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:688)
        at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:644)
        at javax.swing.RepaintManager.seqPaintDirtyRegions(RepaintManager.java:624)
        at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:128)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)