Bug 15527 JavaCore constants should be used is favor of hard-coded strings
the following classes should use constants defined in JavaCode rather than hard-coded strings StubUtility CodeFormatterUtil CompilationUnitEditor JavaCodeScanner JavaCompiletionProcessor
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor.java
else
						hidePrintMargin();
					return;
				}
				
				if (PRINT_MARGIN_COLOR.equals(p)) {
					if (fPrintMarginPainter != null)
						fPrintMarginPainter.setMarginRulerColor(getColor(PRINT_MARGIN_COLOR));
					return;
				}
				
				if (PRINT_MARGIN_COLUMN.equals(p)) {
					if (fPrintMarginPainter != null)
						fPrintMarginPainter.setMarginRulerColumn(getPreferenceStore().getInt(PRINT_MARGIN_COLUMN));
					return;
				}
				
				if (PROBLEM_INDICATION.equals(p)) {
					if (isProblemIndicationEnabled())
						startProblemIndication();
					else
						stopProblemIndication();
					return;
				}
				
				if (PROBLEM_INDICATION_COLOR.equals(p)) {
					if (fProblemPainter != null)
						fProblemPainter.setHighlightColor(getColor(PROBLEM_INDICATION_COLOR));
					return;
				}