@Override
    public void visitReferenceExpression(@NotNull PsiReferenceExpression expression) {
      super.visitReferenceExpression(expression);
      final PsiElement target = expression.resolve();
      if (!(target instanceof PsiField lockedField)) {
        return;
      }
      if (!lockedField.hasModifierProperty(PsiModifier.STATIC) || ExpressionUtils.isConstant(lockedField)) {
        return;
      }
      if (lockedField.hasModifierProperty(PsiModifier.FINAL)) {
        final PsiClass aClass = PsiUtil.resolveClassInClassTypeOnly(lockedField.getType());
        final ConcurrencyAnnotationsManager annotationsManager = ConcurrencyAnnotationsManager.getInstance(expression.getProject());
        final List<String> list = annotationsManager.getThreadSafeList();
        if (AnnotationUtil.findAnnotation(aClass, list) != null) {
          return;
        }
      }
      final PsiClass containingClass = lockedField.getContainingClass();
      if (!PsiTreeUtil.isAncestor(containingClass, expression, false)) {
        return;
      }
      if (!ignoredClasses.isEmpty() && ignoredClasses.contains(TypeUtils.resolvedClassName(lockedField.getType()))) {
        return;
      }

      boolean isLockedOnInstance = false;
      boolean isLockedOnClass = false;
      final PsiMethod containingMethod = PsiTreeUtil.getParentOfType(expression, PsiMethod.class);
      if (containingMethod != null && containingMethod.hasModifierProperty(PsiModifier.SYNCHRONIZED)) {
        if (containingMethod.hasModifierProperty(PsiModifier.STATIC)) {
          isLockedOnClass = true;
        }
        else {
          isLockedOnInstance = true;
        }
      }
      final PsiClass expressionClass = PsiTreeUtil.getParentOfType(expression, PsiClass.class);
      if (expressionClass == null) {
        return;
      }
      PsiElement elementToCheck = expression;
      while (true) {
        final PsiSynchronizedStatement synchronizedStatement = PsiTreeUtil.getParentOfType(elementToCheck, PsiSynchronizedStatement.class);
        if (synchronizedStatement == null || !PsiTreeUtil.isAncestor(expressionClass, synchronizedStatement, true)) {
          break;
        }
        final PsiExpression lockExpression = synchronizedStatement.getLockExpression();
        if (lockExpression instanceof PsiReferenceExpression reference) {
          final PsiElement lockTarget = reference.resolve();
          if (lockTarget instanceof PsiField lockField) {
            if (lockField.hasModifierProperty(PsiModifier.STATIC)) {
              isLockedOnClass = true;
            }
            else {
              isLockedOnInstance = true;
            }
          }
        }
        else if (lockExpression instanceof PsiThisExpression) {
          isLockedOnInstance = true;
        }
        else if (lockExpression instanceof PsiClassObjectAccessExpression) {
          isLockedOnClass = true;
        }
        elementToCheck = synchronizedStatement;
      }
      if (!isLockedOnInstance || isLockedOnClass) {
        return;
      }
      registerError(expression, expression);
    }
@Override
    public void visitReferenceExpression(@NotNull PsiReferenceExpression expression)