Bug 20700 Code assist activates help UI
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor.java
}
				
				if (CURRENT_LINE_COLOR.equals(p)) {
					if (fLinePainter != null) {
						stopLineHighlighting();
						startLineHighlighting();
					}					
					return;
				}
				
				if (PRINT_MARGIN.equals(p)) {
					if (isPrintMarginVisible())
						showPrintMargin();
					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;
				}