Bug 304863 [Compatibility] NPE thrown when using multiple consoles
1. Window > Show View > Console 2. Click the dropdown > New Console View 3. Close the new view. 4. Try clicking the dropdown again. 5. Nothing happens. An NPE is logged. java.lang.NullPointerException at org.eclipse.ui.internal.console.OpenConsoleAction.getMenu(OpenConsoleAction.java:83) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:530) at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501) at org.eclipse.jface.action.ActionContributionItem$6.handleEvent(ActionContributionItem.java:452) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
bundles/org.eclipse.e4.ui.workbench.renderers.swt/src/org/eclipse/e4/ui/workbench/renderers/swt/StackRenderer.java
Display display = Display.getCurrent();
			GC gc = new GC(viewMenu);
			GC maskgc = new GC(viewMenuMask);
			gc.setForeground(display
					.getSystemColor(SWT.COLOR_WIDGET_DARK_SHADOW));
			gc.setBackground(display.getSystemColor(SWT.COLOR_LIST_BACKGROUND));
			int[] shapeArray = new int[] { 6, 1, 15, 1, 11, 5, 10, 5 };
			gc.fillPolygon(shapeArray);
			gc.drawPolygon(shapeArray);
			Color black = display.getSystemColor(SWT.COLOR_BLACK);
			Color white = display.getSystemColor(SWT.COLOR_WHITE);
			maskgc.setBackground(black);
			maskgc.fillRectangle(0, 0, 16, 16);
			maskgc.setBackground(white);
			maskgc.setForeground(white);
			maskgc.fillPolygon(shapeArray);
			maskgc.drawPolygon(shapeArray);
			gc.dispose();
			maskgc.dispose();
			ImageData data = viewMenu.getImageData();
			data.transparentPixel = data.getPixel(0, 0);
			viewMenuImage = new Image(d, viewMenu.getImageData(),
					viewMenuMask.getImageData());
			viewMenu.dispose();
			viewMenuMask.dispose();
		}
		return viewMenuImage;
	}
}