Bug 16181 Tab key doesn't work in editor when 'Insert spaces for tabs' enabled
Using integration build 0515, pressing Tab in an editor window doesn't do anything when 'Insert spaces for tabs' is selected. The editor is marked as unsaved, but no spaces appear.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor.java
public final static String LINKED_POSITION_COLOR= "linkedPositionColor"; 
	
	public final static String OVERVIEW_RULER= "overviewRuler"; 
	
	
	
	
	protected ISelectionChangedListener fStatusLineClearer;
	
	protected ISavePolicy fSavePolicy;
	
	private JavaEditorErrorTickUpdater fJavaEditorErrorTickUpdater;
	
	private PaintManager fPaintManager;
	
	private BracketPainter fBracketPainter;
	
	private LinePainter fLinePainter;
	
	private PrintMarginPainter fPrintMarginPainter;
	
	private ProblemPainter fProblemPainter;
	
	private TabConverter fTabConverter;
	
	private SelectionHistory fSelectionHistory;
	
	
	private GenerateActionGroup fGenerateActionGroup;
	private CompositeActionGroup fContextMenuGroup;