Bump nullaway from 0.12.11 to 0.13.1

This also sets `RequireExplicitNullMarking` to WARN.

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

Author: scordio

spring-batch-notion/pom.xml

@@ -155,6 +155,7 @@ limitations under the License.
               <!-- Check JSpecify annotations -->
               -Xep:NullAway
               -XepOpt:NullAway:OnlyNullMarked
+              -Xep:RequireExplicitNullMarking:WARN
               -XepOpt:NullAway:SuppressionNameAliases=DataFlowIssue
             </compilerArg>
           </compilerArgs>
@@ -167,7 +168,7 @@ limitations under the License.
             <path>
               <groupId>com.uber.nullaway</groupId>
               <artifactId>nullaway</artifactId>
-              <version>0.12.11</version>
+              <version>0.13.1</version>
             </path>
           </annotationProcessorPaths>
           <failOnWarning>true</failOnWarning>

spring-batch-notion/src/test/java/org/springframework/batch/extensions/notion/it/package-info.java

@@ -0,0 +1,19 @@
+/*
+ * Copyright 2024-2026 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.
+ */
+@NullUnmarked
+package org.springframework.batch.extensions.notion.it;
+
+import org.jspecify.annotations.NullUnmarked;

spring-batch-notion/src/test/java/org/springframework/batch/extensions/notion/it/pagination/package-info.java

@@ -0,0 +1,19 @@
+/*
+ * Copyright 2024-2026 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.
+ */
+@NullUnmarked
+package org.springframework.batch.extensions.notion.it.pagination;
+
+import org.jspecify.annotations.NullUnmarked;

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

@@ -0,0 +1,19 @@
+/*
+ * Copyright 2024-2026 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.
+ */
+@NullUnmarked
+package org.springframework.batch.extensions.notion.mapping;
+
+import org.jspecify.annotations.NullUnmarked;

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

@@ -16,7 +16,7 @@
 /**
  * Tests for Spring Batch Notion.
  */
-@NullMarked
+@NullUnmarked
 package org.springframework.batch.extensions.notion;
 
-import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.NullUnmarked;