Bug 326699 Part in shared area finds wrong parent context during shutdown
Build: 4.1 M2. After working for a couple of days, I attempted to shutdown and got an NPE. I was unable to close the application normally and had to kill the process. Complete log to follow but here is a snippet: java.lang.NullPointerException at org.eclipse.ui.internal.WorkbenchWindow.hardClose(WorkbenchWindow.java:1322) at org.eclipse.ui.internal.WorkbenchWindow.busyClose(WorkbenchWindow.java:1059) at org.eclipse.ui.internal.WorkbenchWindow.access$9(WorkbenchWindow.java:1038) at org.eclipse.ui.internal.WorkbenchWindow$6.run(WorkbenchWindow.java:1085) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
bundles/org.eclipse.e4.ui.workbench.swt/src/org/eclipse/e4/ui/internal/workbench/swt/PartRenderingEngine.java
}
		});
		return IApplication.EXIT_OK;
	}
	protected boolean someAreVisible(List<MWindow> windows) {
		for (MWindow win : windows) {
			if (win.isToBeRendered() && win.isVisible()
					&& win.getWidget() != null) {
				return true;
			}
		}
		return false;
	}
	public void stop() {
		
		cleanUp();
		if (theApp != null) {
			for (MWindow window : theApp.getChildren()) {
				if (window.getWidget() != null) {
					((Shell) window.getWidget()).close();
				}
			}
		} else if (testShell != null && !testShell.isDisposed()) {
			testShell.close();
		}
	}
	/*
	 * There are situations where this is called more than once until we know
	 * why this is needed we should make this safe for multiple calls
	 */