fDocument.replace(10, 5,  null);
fDocument.replace(10, 5,  "");
	public void testDeletePartition() {		try {			fDocument.set("class x {\n/***/\n}");			check(10, 5);			fDocument.replace(10, 5,  null);			check(10, 0);		} catch (BadLocationException x) {			assertTrue(false);		}	}