Add missing package descriptor

Signed-off-by: Stefano Cordio <stefano.cordio@gmail.com>

Author: scordio

spring-batch-notion/src/main/java/org/springframework/batch/extensions/notion/NotionDatabaseItemReader.java

@@ -92,7 +92,7 @@ public NotionDatabaseItemReader(String token, String databaseId, PropertyMapper<
 		this.token = Objects.requireNonNull(token);
 		this.databaseId = Objects.requireNonNull(databaseId);
 		this.propertyMapper = Objects.requireNonNull(propertyMapper);
-		setPageSize(DEFAULT_PAGE_SIZE);
+		this.pageSize = DEFAULT_PAGE_SIZE;
 	}
 
 	/**

spring-batch-notion/src/main/java/org/springframework/batch/extensions/notion/mapping/package-info.java

@@ -0,0 +1,23 @@
+/*
+ * Copyright 2024-2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Infrastructure to map the properties of a Notion item into a Java object.
+ */
+@NullMarked
+package org.springframework.batch.extensions.notion.mapping;
+
+import org.jspecify.annotations.NullMarked;

spring-batch-notion/src/test/java/org/springframework/batch/extensions/notion/mapping/BeanWrapperPropertyMapperTests.java

@@ -15,6 +15,7 @@
  */
 package org.springframework.batch.extensions.notion.mapping;
 
+import org.jspecify.annotations.Nullable;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.springframework.batch.extensions.notion.mapping.TestData.AllPropertiesSource;
@@ -82,25 +83,25 @@ void should_fail_with_vararg_constructor_parameter() {
 
 	private static class TestBean {
 
-		private String field1;
+		private @Nullable String field1;
 
-		private String field2;
+		private @Nullable String field2;
 
-		public String getField1() {
+		public @Nullable String getField1() {
 			return field1;
 		}
 
 		@SuppressWarnings("unused")
-		public void setField1(String field1) {
+		public void setField1(@Nullable String field1) {
 			this.field1 = field1;
 		}
 
-		public String getField2() {
+		public @Nullable String getField2() {
 			return field2;
 		}
 
 		@SuppressWarnings("unused")
-		public void setField2(String field2) {
+		public void setField2(@Nullable String field2) {
 			this.field2 = field2;
 		}
 

spring-batch-notion/src/test/java/org/springframework/batch/extensions/notion/mapping/ConstructorPropertyMapperTests.java

@@ -15,6 +15,7 @@
  */
 package org.springframework.batch.extensions.notion.mapping;
 
+import org.jspecify.annotations.Nullable;
 import org.junit.jupiter.api.Nested;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
@@ -92,7 +93,7 @@ void should_map_partial_properties(Map<String, String> properties) {
 	@Nested
 	class using_record_with_additional_constructors {
 
-		private record TestRecord(String field1, String field2) {
+		private record TestRecord(@Nullable String field1, @Nullable String field2) {
 
 			@SuppressWarnings("unused")
 			private TestRecord() {

spring-batch-notion/src/test/java/org/springframework/batch/extensions/notion/mapping/RecordPropertyMapperTests.java

@@ -15,6 +15,7 @@
  */
 package org.springframework.batch.extensions.notion.mapping;
 
+import org.jspecify.annotations.Nullable;
 import org.junit.jupiter.api.Nested;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
@@ -92,7 +93,7 @@ void should_map_partial_properties(Map<String, String> properties) {
 	@Nested
 	class using_record_with_additional_constructors {
 
-		private record TestRecord(String field1, String field2) {
+		private record TestRecord(@Nullable String field1, @Nullable String field2) {
 
 			@SuppressWarnings("unused")
 			private TestRecord() {