instance.removePanelListener(listener); fail(); } catch (NullPointerException expected) { assertSame(listener, listeners[1]); instance.removePanelListener(listener); listeners = instance.getPanelListeners(); assertEquals(1, listeners.length); assertSame(listener, listeners[0]); instance.removePanelListener(listener); listeners = instance.getPanelListeners(); assertEquals(0, listeners.length);
instance.removePanelListener(listener); fail(); } catch (NullPointerException expected) { assertSame(listener, listeners[1]); instance.removePanelListener(listener); listeners = instance.getListeners(PanelListener.class); assertEquals(1, listeners.length); assertSame(listener, listeners[0]); instance.removePanelListener(listener); listeners = instance.getListeners(PanelListener.class); assertEquals(0, listeners.length);