Bug 32680 Print margin is in wrong location
Eclipse 2.1 (RC1) After changing my font to "Courier New", then turning on the Print Margin, I had to realize that it was located in the wrong place (off by some characters)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
fSourceViewerDecorationSupport.setAnnotationPainterPreferenceKeys(AnnotationType.WARNING, WARNING_INDICATION_COLOR, WARNING_INDICATION, WARNING_INDICATION_IN_OVERVIEW_RULER, 4);
		fSourceViewerDecorationSupport.setAnnotationPainterPreferenceKeys(AnnotationType.ERROR, ERROR_INDICATION_COLOR, ERROR_INDICATION, ERROR_INDICATION_IN_OVERVIEW_RULER, 5);
				
		
		fSourceViewerDecorationSupport.setCursorLinePainterPreferenceKeys(CURRENT_LINE, CURRENT_LINE_COLOR);
		fSourceViewerDecorationSupport.setMarginPainterPreferenceKeys(PRINT_MARGIN, PRINT_MARGIN_COLOR, PRINT_MARGIN_COLUMN);
		fSourceViewerDecorationSupport.setMatchingCharacterPainterPreferenceKeys(MATCHING_BRACKETS, MATCHING_BRACKETS_COLOR);		
	}
	
	/**
	 * Jumps to the matching bracket.
	 */
	public void gotoMatchingBracket() {
		
		ISourceViewer sourceViewer= getSourceViewer();
		IDocument document= sourceViewer.getDocument();
		if (document == null)
			return;
		
		IRegion selection= getSignedSelection(sourceViewer);
		int selectionLength= Math.abs(selection.getLength());
		if (selectionLength > 1) {
			setStatusLineErrorMessage(JavaEditorMessages.getString("GotoMatchingBracket.error.invalidSelection"));			
			sourceViewer.getTextWidget().getDisplay().beep();
			return;
		}
		
		int sourceCaretOffset= selection.getOffset() + selection.getLength();
		if (isSurroundedByBrackets(document, sourceCaretOffset))
			sourceCaretOffset -= selection.getLength();