Bug 71354 [painting] IAE in StyledText.getBidiSegments upon revert
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
ISourceRange range= ((ISourceReference) element).getSourceRange();
				if (offset < range.getOffset() + range.getLength() && range.getOffset() < offset + length) {
					
					ISourceViewer viewer= getSourceViewer();
					if (viewer instanceof ITextViewerExtension5) {
						ITextViewerExtension5 extension= (ITextViewerExtension5) viewer;
						extension.exposeModelRange(new Region(range.getOffset(), range.getLength()));
					}
					
					setHighlightRange(range.getOffset(), range.getLength(), true);
					if (fOutlinePage != null) {
						fOutlineSelectionChangedListener.uninstall(fOutlinePage);
						fOutlinePage.select((ISourceReference) element);
						fOutlineSelectionChangedListener.install(fOutlinePage);
					}
					
					return;
				}
				element= element.getParent();
			}
			
		} catch (JavaModelException x) {
			JavaPlugin.log(x.getStatus());
		}
		
		ISourceViewer viewer= getSourceViewer();
		if (viewer instanceof ITextViewerExtension5) {
			ITextViewerExtension5 extension= (ITextViewerExtension5) viewer;
			extension.exposeModelRange(new Region(offset, length));
		} else {