Bug 49461 [preferences] code formatter not configured with Java project options
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor.java
if (fTabRatio == 0)
				return 0;
				
			int remainder= offsetInLine % fTabRatio;
			remainder= fTabRatio - remainder;
			for (int i= 0; i < remainder; i++)
				buffer.append(' ');
			return remainder;
		}
		
		public void customizeDocumentCommand(IDocument document, DocumentCommand command) {
			String text= command.text;
			if (text == null)
				return;
				
			int index= text.indexOf('\t');
			if (index > -1) {
				
				StringBuffer buffer= new StringBuffer();
				
				fLineTracker.set(command.text);
				int lines= fLineTracker.getNumberOfLines();
				
				try {
						
						for (int i= 0; i < lines; i++) {
							
							int offset= fLineTracker.getLineOffset(i);
							int endOffset= offset + fLineTracker.getLineLength(i);