Fix nullable annotations.

Transition nullable annotations previously missed to jspecify.

See: #4874

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/CollectionOptions.java

@@ -30,6 +30,7 @@ import org.bson.BsonBinary;
 import org.bson.BsonBinarySubType;
 import org.bson.BsonNull;
 import org.bson.Document;
+import org.jspecify.annotations.Nullable;
 import org.springframework.data.mongodb.core.mapping.Field;
 import org.springframework.data.mongodb.core.query.Collation;
 import org.springframework.data.mongodb.core.schema.IdentifiableJsonSchemaProperty;
@@ -43,7 +44,6 @@ import org.springframework.data.mongodb.core.validation.Validator;
 import org.springframework.data.util.Optionals;
 import org.springframework.lang.CheckReturnValue;
 import org.springframework.lang.Contract;
-import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.ObjectUtils;
 

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/IndexConverters.java

@@ -18,10 +18,10 @@ package org.springframework.data.mongodb.core;
 import java.util.concurrent.TimeUnit;
 
 import org.bson.Document;
+import org.jspecify.annotations.Nullable;
 import org.springframework.core.convert.converter.Converter;
 import org.springframework.data.mongodb.core.index.IndexDefinition;
 import org.springframework.data.mongodb.core.index.IndexInfo;
-import org.springframework.lang.Nullable;
 import org.springframework.util.ObjectUtils;
 
 import com.mongodb.client.model.Collation;
@@ -124,8 +124,7 @@ abstract class IndexConverters {
 		};
 	}
 
-	@Nullable
-	public static Collation fromDocument(@Nullable Document source) {
+	public static @Nullable Collation fromDocument(@Nullable Document source) {
 
 		if (source == null) {
 			return null;

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoClientSettingsFactoryBean.java

@@ -25,8 +25,8 @@ import javax.net.ssl.SSLContext;
 
 import org.bson.UuidRepresentation;
 import org.bson.codecs.configuration.CodecRegistry;
+import org.jspecify.annotations.Nullable;
 import org.springframework.beans.factory.config.AbstractFactoryBean;
-import org.springframework.lang.Nullable;
 import org.springframework.util.CollectionUtils;
 import org.springframework.util.StringUtils;
 

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/SortingQueryCursorPreparer.java

@@ -16,7 +16,7 @@
 package org.springframework.data.mongodb.core;
 
 import org.bson.Document;
-import org.springframework.lang.Nullable;
+import org.jspecify.annotations.Nullable;
 
 /**
  * {@link CursorPreparer} that exposes its {@link Document sort document}.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/LookupOperation.java

@@ -18,12 +18,12 @@ package org.springframework.data.mongodb.core.aggregation;
 import java.util.function.Supplier;
 
 import org.bson.Document;
+import org.jspecify.annotations.Nullable;
 import org.springframework.data.mongodb.core.aggregation.ExposedFields.ExposedField;
 import org.springframework.data.mongodb.core.aggregation.FieldsExposingAggregationOperation.InheritsFieldsAggregationOperation;
 import org.springframework.data.mongodb.core.aggregation.VariableOperators.Let;
 import org.springframework.data.mongodb.core.aggregation.VariableOperators.Let.ExpressionVariable;
 import org.springframework.lang.Contract;
-import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 
 /**
@@ -42,17 +42,13 @@ public class LookupOperation implements FieldsExposingAggregationOperation, Inhe
 
 	private final String from;
 
-	@Nullable //
-	private final Field localField;
+	private final @Nullable Field localField;
 
-	@Nullable //
-	private final Field foreignField;
+	private final @Nullable Field foreignField;
 
-	@Nullable //
-	private final Let let;
+	private final @Nullable Let let;
 
-	@Nullable //
-	private final AggregationPipeline pipeline;
+	private final @Nullable AggregationPipeline pipeline;
 
 	private final ExposedField as;
 

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/encryption/MongoEncryptionConverter.java

@@ -33,6 +33,7 @@ import org.bson.BsonValue;
 import org.bson.Document;
 import org.bson.types.Binary;
 
+import org.jspecify.annotations.Nullable;
 import org.springframework.core.CollectionFactory;
 import org.springframework.data.mongodb.core.convert.MongoConversionContext;
 import org.springframework.data.mongodb.core.convert.MongoConversionContext.OperatorContext;
@@ -45,7 +46,6 @@ import org.springframework.data.mongodb.core.mapping.Encrypted;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
 import org.springframework.data.mongodb.core.mapping.Queryable;
 import org.springframework.data.mongodb.util.BsonUtils;
-import org.springframework.lang.Nullable;
 import org.springframework.util.ObjectUtils;
 import org.springframework.util.StringUtils;
 
@@ -72,9 +72,8 @@ public class MongoEncryptionConverter implements EncryptingConverter<Object, Obj
 		this.keyResolver = keyResolver;
 	}
 
-	@Nullable
 	@Override
-	public Object read(Object value, MongoConversionContext context) {
+	public @Nullable Object read(Object value, MongoConversionContext context) {
 
 		Object decrypted = EncryptingConverter.super.read(value, context);
 		return decrypted instanceof BsonValue bsonValue ? BsonUtils.toJavaType(bsonValue) : decrypted;

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/encryption/EncryptionOptions.java

@@ -18,7 +18,7 @@ package org.springframework.data.mongodb.core.encryption;
 import java.util.Map;
 import java.util.Objects;
 
-import org.springframework.lang.Nullable;
+import org.jspecify.annotations.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.ObjectUtils;
 

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/index/GeospatialIndex.java

@@ -18,8 +18,8 @@ package org.springframework.data.mongodb.core.index;
 import java.util.Optional;
 
 import org.bson.Document;
+import org.jspecify.annotations.Nullable;
 import org.springframework.data.mongodb.core.query.Collation;
-import org.springframework.lang.Nullable;
 import org.springframework.lang.Contract;
 import org.springframework.util.Assert;
 import org.springframework.util.StringUtils;

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/index/SearchIndexDefinition.java

@@ -16,11 +16,11 @@
 package org.springframework.data.mongodb.core.index;
 
 import org.bson.Document;
+import org.jspecify.annotations.Nullable;
 import org.springframework.data.mapping.context.MappingContext;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
 import org.springframework.data.util.TypeInformation;
-import org.springframework.lang.Nullable;
 
 /**
  * Definition for an Atlas Search Index (Search Index or Vector Index).

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/index/SearchIndexInfo.java

@@ -18,12 +18,12 @@ package org.springframework.data.mongodb.core.index;
 import java.util.function.Supplier;
 
 import org.bson.Document;
+import org.jspecify.annotations.Nullable;
 import org.springframework.data.mapping.context.MappingContext;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
 import org.springframework.data.util.Lazy;
 import org.springframework.data.util.TypeInformation;
-import org.springframework.lang.Nullable;
 
 /**
  * Index information for a MongoDB Search Index.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/index/VectorIndex.java

@@ -20,13 +20,13 @@ import java.util.List;
 import java.util.function.Consumer;
 
 import org.bson.Document;
+import org.jspecify.annotations.Nullable;
 import org.springframework.data.mapping.context.MappingContext;
 import org.springframework.data.mongodb.core.convert.QueryMapper;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentEntity;
 import org.springframework.data.mongodb.core.mapping.MongoPersistentProperty;
 import org.springframework.data.util.TypeInformation;
 import org.springframework.lang.Contract;
-import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.ObjectUtils;
 import org.springframework.util.StringUtils;

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/schema/JsonSchemaProperty.java

@@ -18,6 +18,7 @@ package org.springframework.data.mongodb.core.schema;
 import java.util.Collection;
 import java.util.List;
 
+import org.jspecify.annotations.Nullable;
 import org.springframework.data.mongodb.core.schema.IdentifiableJsonSchemaProperty.ArrayJsonSchemaProperty;
 import org.springframework.data.mongodb.core.schema.IdentifiableJsonSchemaProperty.BooleanJsonSchemaProperty;
 import org.springframework.data.mongodb.core.schema.IdentifiableJsonSchemaProperty.DateJsonSchemaProperty;
@@ -32,7 +33,6 @@ import org.springframework.data.mongodb.core.schema.IdentifiableJsonSchemaProper
 import org.springframework.data.mongodb.core.schema.IdentifiableJsonSchemaProperty.UntypedJsonSchemaProperty;
 import org.springframework.data.mongodb.core.schema.TypedJsonSchemaObject.NumericJsonSchemaObject;
 import org.springframework.data.mongodb.core.schema.TypedJsonSchemaObject.ObjectJsonSchemaObject;
-import org.springframework.lang.Nullable;
 
 /**
  * A {@literal property} or {@literal patternProperty} within a {@link JsonSchemaObject} of {@code type : 'object'}.

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/schema/QueryCharacteristics.java

@@ -22,9 +22,9 @@ import java.util.List;
 
 import org.bson.BsonNull;
 import org.bson.Document;
+import org.jspecify.annotations.Nullable;
 import org.springframework.data.domain.Range;
 import org.springframework.data.domain.Range.Bound;
-import org.springframework.lang.Nullable;
 
 /**
  * Encapsulation of individual {@link QueryCharacteristic query characteristics} used to define queries that can be

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/core/index/VectorIndexIntegrationTests.java

@@ -22,6 +22,7 @@ import static org.springframework.data.mongodb.test.util.Assertions.assertThat;
 import java.util.List;
 
 import org.bson.Document;
+import org.jspecify.annotations.Nullable;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
@@ -34,7 +35,6 @@ import org.springframework.data.mongodb.core.mapping.Field;
 import org.springframework.data.mongodb.test.util.AtlasContainer;
 import org.springframework.data.mongodb.test.util.MongoTestTemplate;
 import org.springframework.data.mongodb.test.util.MongoTestUtils;
-import org.springframework.lang.Nullable;
 
 import org.testcontainers.junit.jupiter.Container;
 import org.testcontainers.junit.jupiter.Testcontainers;
@@ -200,8 +200,7 @@ class VectorIndexIntegrationTests {
 		});
 	}
 
-	@Nullable
-	private Document readRawIndexInfo(String name) {
+	private @Nullable Document readRawIndexInfo(String name) {
 
 		AggregateIterable<Document> indexes = template.execute(Movie.class, collection -> {
 			return collection.aggregate(List.of(new Document("$listSearchIndexes", new Document("name", name))));

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/repository/VersionedPersonRepositoryIntegrationTests.java

@@ -19,6 +19,7 @@ import static org.assertj.core.api.Assertions.*;
 
 import org.bson.Document;
 import org.bson.types.ObjectId;
+import org.jspecify.annotations.Nullable;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
@@ -34,7 +35,6 @@ import org.springframework.data.mongodb.test.util.Client;
 import org.springframework.data.mongodb.test.util.MongoClientExtension;
 import org.springframework.data.mongodb.test.util.MongoTestUtils;
 import org.springframework.data.repository.CrudRepository;
-import org.springframework.lang.Nullable;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit.jupiter.SpringExtension;