Bug 320285 Messages inteneded for developers in the error log
The message "unsupported: isEditorAreaVisible" appears in the error log during the normal run of e4 SDK. (For instance, starting the e4 SDK on an clean workspace produces two of those messages.)
bundles/org.eclipse.e4.ui.workbench/src/org/eclipse/e4/ui/internal/workbench/ModelServiceImpl.java
curParent = element.getCurSharedRef().getParent();
		else
			curParent = (MUIElement) ((EObject) element).eContainer();
		while (curParent != null) {
			if (curParent instanceof MContext) {
				return ((MContext) curParent).getContext();
			}
			if (curParent.getCurSharedRef() != null)
				curParent = curParent.getCurSharedRef().getParent();
			else
				curParent = (MUIElement) ((EObject) curParent).eContainer();
		}
		return null;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.e4.ui.workbench.modeling.EModelService#bringToTop(org.eclipse.e4.ui.model.application
	 * .ui.basic.MWindow, org.eclipse.e4.ui.model.application.ui.MUIElement)
	 */
	public void bringToTop(MWindow window, MUIElement element) {
		if (element instanceof MApplication)
			return;
		if (element instanceof MPartStack && !element.isVisible()) {
			MWindow window1 = getTopLevelWindowFor(element);
			String trimId = element.getElementId() + "(minimized)"; 
			MPerspective persp = getPerspectiveFor(element);
			if (persp != null)
				trimId = element.getElementId() + '(' + persp.getElementId() + ')';