Bug 13877 NLS tool - values are not displayed correctly
On the first page, the values ".", "...", "\n" are displayed as "", "", " ". At least the case of "." seems to happen for windows as well. I think "\n" should be displayed in the escaped notation again, as "\n".
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/viewsupport/ProblemTableViewer.java
Control control= getControl();
		if (control != null && !control.isDisposed()) {
			control.getDisplay().asyncExec(new Runnable() {
				public void run() {
					fProblemItemMapper.problemsChanged(changed, (ILabelProvider)getLabelProvider());
				}
			});
		}
	}
	
	/*
	 * @see StructuredViewer#mapElement(Object, Widget)
	 */
	protected void mapElement(Object element, Widget item) {
		super.mapElement(element, item);
		if (item instanceof Item) {
			fProblemItemMapper.addToMap(element, (Item) item);
		}
	}
	/*
	 * @see StructuredViewer#unmapElement(Object, Widget)
	 */
	protected void unmapElement(Object element, Widget item) {
		if (item instanceof Item) {
			fProblemItemMapper.removeFromMap(element, (Item) item);
		}		
		super.unmapElement(element, item);
	}
}