diff --git a/client/src/main/java/info/frostfs/sdk/utils/ValidatorUtils.java b/client/src/main/java/info/frostfs/sdk/utils/ValidatorUtils.java
deleted file mode 100644
index 20d6b15..0000000
--- a/client/src/main/java/info/frostfs/sdk/utils/ValidatorUtils.java
+++ /dev/null
@@ -1,42 +0,0 @@
-package info.frostfs.sdk.utils;
-
-import org.apache.commons.collections4.CollectionUtils;
-
-import javax.validation.ConstraintViolation;
-import javax.validation.Validation;
-import javax.validation.ValidationException;
-import javax.validation.Validator;
-import java.util.Set;
-
-import static java.util.Objects.isNull;
-
-public class ValidatorUtils {
-    private static final String OBJECT_IS_NULL = "object is null";
-    private static final String ERROR_PROPERTY_TEMPLATE = "property %s with value %s %s";
-
-    private static final Validator validator = Validation.buildDefaultValidatorFactory().getValidator();
-
-
-    public static <T> void validate(T object, Class<?>... classes) {
-        if (isNull(object)) {
-            throw new ValidationException(OBJECT_IS_NULL);
-        }
-
-        Set<ConstraintViolation<T>> violations = validator.validate(object, classes);
-
-        if (CollectionUtils.isEmpty(violations)) {
-            return;
-        }
-
-        String[] errors = (String[]) violations.stream()
-                .map(violation -> String.format(
-                        ERROR_PROPERTY_TEMPLATE,
-                        violation.getPropertyPath().toString(),
-                        violation.getInvalidValue(),
-                        violation.getMessage()
-                ))
-                .toArray();
-
-        throw new ValidationException(String.join(",", errors));
-    }
-}
diff --git a/models/src/test/java/info/frostfs/sdk/mappers/object/ObjectHeaderMapperTest.java b/models/src/test/java/info/frostfs/sdk/mappers/object/ObjectHeaderMapperTest.java
index a2ca83c..207854d 100644
--- a/models/src/test/java/info/frostfs/sdk/mappers/object/ObjectHeaderMapperTest.java
+++ b/models/src/test/java/info/frostfs/sdk/mappers/object/ObjectHeaderMapperTest.java
@@ -8,6 +8,7 @@ import info.frostfs.sdk.dto.object.ObjectAttribute;
 import info.frostfs.sdk.dto.object.ObjectHeader;
 import info.frostfs.sdk.dto.object.OwnerId;
 import info.frostfs.sdk.enums.ObjectType;
+import info.frostfs.sdk.mappers.response.MetaHeaderMapper;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.EnumSource;
@@ -55,7 +56,7 @@ public class ObjectHeaderMapperTest {
     @Test
     void toGrpcMessage_null() {
         //When + Then
-        assertNull(ObjectHeaderMapper.toGrpcMessage(null));
+        assertThrows(IllegalArgumentException.class, () -> ObjectHeaderMapper.toGrpcMessage(null));
     }
 
     @Test