private static String collapseConstant(@NonNls String expressionText, PsiElement context) {
      final Project project = context.getProject();
      final JavaPsiFacade psiFacade = JavaPsiFacade.getInstance(project);
      final PsiElementFactory factory = psiFacade.getElementFactory();
      final PsiExpression fromOffsetExpression = factory.createExpressionFromText(expressionText, context);
      final Object fromOffsetConstant = ExpressionUtils.computeConstantExpression(fromOffsetExpression);
      if (fromOffsetConstant != null) {
        return fromOffsetConstant.toString();
      }
      else {
        return expressionText;
      }
    }
private static String collapseConstant(@NonNls String expressionText, PsiElement context)