private boolean fieldIsConstant(PsiField field) {
      if (!field.hasModifierProperty(PsiModifier.STATIC) || !field.hasModifierProperty(PsiModifier.FINAL)) {
        return false;
      }
      if (m_considerStaticFinalFieldsConstant) {
        return true;
      }
      return ClassUtils.isImmutable(field.getType());
    }
private boolean fieldIsConstant(PsiField field)