Fix annotation package

auto-configurations/models/spring-ai-autoconfigure-model-openai/src/main/java/org/springframework/ai/model/openai/autoconfigure/OpenAIAutoConfigurationUtil.java

@@ -20,8 +20,7 @@
 import java.util.List;
 import java.util.Map;
 
-import org.jetbrains.annotations.NotNull;
-
+import org.springframework.lang.NonNull;
 import org.springframework.util.Assert;
 import org.springframework.util.CollectionUtils;
 import org.springframework.util.MultiValueMap;
@@ -33,7 +32,7 @@ private OpenAIAutoConfigurationUtil() {
 		// Avoids instantiation
 	}
 
-	public static @NotNull ResolvedConnectionProperties resolveConnectionProperties(
+	public static @NonNull ResolvedConnectionProperties resolveConnectionProperties(
 			OpenAiParentProperties commonProperties, OpenAiParentProperties modelProperties, String modelType) {
 
 		String baseUrl = StringUtils.hasText(modelProperties.getBaseUrl()) ? modelProperties.getBaseUrl()

auto-configurations/models/spring-ai-autoconfigure-model-openai/src/main/java/org/springframework/ai/model/openai/autoconfigure/package-info.java

@@ -0,0 +1,22 @@
+/*
+ * Copyright 2025-2025 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.
+ */
+
+@NonNullApi
+@NonNullFields
+package org.springframework.ai.model.openai.autoconfigure;
+
+import org.springframework.lang.NonNullApi;
+import org.springframework.lang.NonNullFields;

models/spring-ai-vertex-ai-gemini/src/test/java/org/springframework/ai/vertexai/gemini/VertexAiGeminiChatModelIT.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023-2024 the original author or authors.
+ * Copyright 2023-2025 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.
@@ -26,7 +26,6 @@
 import com.google.cloud.vertexai.Transport;
 import com.google.cloud.vertexai.VertexAI;
 import io.micrometer.observation.ObservationRegistry;
-import org.jetbrains.annotations.NotNull;
 import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.condition.EnabledIfEnvironmentVariable;
@@ -56,6 +55,7 @@
 import org.springframework.core.convert.support.DefaultConversionService;
 import org.springframework.core.io.ClassPathResource;
 import org.springframework.core.io.Resource;
+import org.springframework.lang.NonNull;
 import org.springframework.util.MimeType;
 import org.springframework.util.MimeTypeUtils;
 
@@ -130,7 +130,7 @@ void testSafetySettings() {
 		assertThat(response.getResult().getMetadata().getFinishReason()).isEqualTo("SAFETY");
 	}
 
-	@NotNull
+	@NonNull
 	private Prompt createPrompt(VertexAiGeminiChatOptions chatOptions) {
 		String request = "Tell me about 3 famous pirates from the Golden Age of Piracy and why they did.";
 		String name = "Bob";

spring-ai-model/src/main/java/org/springframework/ai/model/AbstractResponseMetadata.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023-2024 the original author or authors.
+ * Copyright 2023-2025 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.
@@ -21,8 +21,8 @@
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 
-import io.micrometer.common.lang.NonNull;
-import io.micrometer.common.lang.Nullable;
+import org.springframework.lang.NonNull;
+import org.springframework.lang.Nullable;
 
 public class AbstractResponseMetadata {
 

spring-ai-model/src/main/java/org/springframework/ai/model/MutableResponseMetadata.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023-2024 the original author or authors.
+ * Copyright 2023-2025 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.
@@ -22,8 +22,8 @@
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.function.Function;
 
-import io.micrometer.common.lang.NonNull;
-import io.micrometer.common.lang.Nullable;
+import org.springframework.lang.NonNull;
+import org.springframework.lang.Nullable;
 
 public class MutableResponseMetadata implements ResponseMetadata {
 

spring-ai-model/src/main/java/org/springframework/ai/model/ResponseMetadata.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023-2024 the original author or authors.
+ * Copyright 2023-2025 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.
@@ -20,8 +20,8 @@
 import java.util.Set;
 import java.util.function.Supplier;
 
-import io.micrometer.common.lang.NonNull;
-import io.micrometer.common.lang.Nullable;
+import org.springframework.lang.NonNull;
+import org.springframework.lang.Nullable;
 
 /**
  * Interface representing metadata associated with an AI model's response.

spring-ai-model/src/main/java/org/springframework/ai/model/package-info.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023-2024 the original author or authors.
+ * Copyright 2023-2025 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.
@@ -25,4 +25,9 @@
  *
  */
 
+@NonNullApi
+@NonNullFields
 package org.springframework.ai.model;
+
+import org.springframework.lang.NonNullApi;
+import org.springframework.lang.NonNullFields;

vector-stores/spring-ai-pgvector-store/src/test/java/org/springframework/ai/vectorstore/pgvector/PgVectorStoreWithChatMemoryAdvisorIT.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023-2024 the original author or authors.
+ * Copyright 2023-2025 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.
@@ -20,7 +20,6 @@
 import java.util.Map;
 import java.util.UUID;
 
-import org.jetbrains.annotations.NotNull;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 import org.mockito.ArgumentCaptor;
@@ -45,6 +44,7 @@
 import org.springframework.ai.embedding.EmbeddingModel;
 import org.springframework.ai.vectorstore.SearchRequest;
 import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.lang.NonNull;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.mockito.ArgumentMatchers.any;
@@ -68,7 +68,7 @@ class PgVectorStoreWithChatMemoryAdvisorIT {
 
 	float[] embed = { 0.003961659F, -0.0073295482F, 0.02663665F };
 
-	private static @NotNull ChatModel chatModelAlwaysReturnsTheSameReply() {
+	private static @NonNull ChatModel chatModelAlwaysReturnsTheSameReply() {
 		ChatModel chatModel = mock(ChatModel.class);
 		ArgumentCaptor<Prompt> argumentCaptor = ArgumentCaptor.forClass(Prompt.class);
 		ChatResponse chatResponse = new ChatResponse(List.of(new Generation(new AssistantMessage("""
@@ -95,7 +95,7 @@ private static PgVectorStore createPgVectorStoreUsingTestcontainer(EmbeddingMode
 			.build();
 	}
 
-	private static @NotNull JdbcTemplate createJdbcTemplateWithConnectionToTestcontainer() {
+	private static @NonNull JdbcTemplate createJdbcTemplateWithConnectionToTestcontainer() {
 		PGSimpleDataSource ds = new PGSimpleDataSource();
 		ds.setUrl("jdbc:postgresql://localhost:" + postgresContainer.getMappedPort(5432) + "/postgres");
 		ds.setUser(postgresContainer.getUsername());
@@ -123,7 +123,7 @@ private static void verifyRequestHasBeenAdvisedWithMessagesFromVectorStore(ChatM
 	 * Create a mock ChatModel that supports streaming responses for testing.
 	 * @return A mock ChatModel that returns a predefined streaming response
 	 */
-	private static @NotNull ChatModel chatModelWithStreamingSupport() {
+	private static @NonNull ChatModel chatModelWithStreamingSupport() {
 		ChatModel chatModel = mock(ChatModel.class);
 
 		// Mock the regular call method
@@ -158,7 +158,7 @@ private static void verifyRequestHasBeenAdvisedWithMessagesFromVectorStore(ChatM
 	 * VectorStoreChatMemoryAdvisor.
 	 * @return A mock ChatModel that returns a problematic streaming response
 	 */
-	private static @NotNull ChatModel chatModelWithProblematicStreamingBehavior() {
+	private static @NonNull ChatModel chatModelWithProblematicStreamingBehavior() {
 		ChatModel chatModel = mock(ChatModel.class);
 
 		// Mock the regular call method
@@ -390,7 +390,7 @@ private Throwable getRootCause(Throwable throwable) {
 	}
 
 	@SuppressWarnings("unchecked")
-	private @NotNull EmbeddingModel embeddingNModelShouldAlwaysReturnFakedEmbed() {
+	private @NonNull EmbeddingModel embeddingNModelShouldAlwaysReturnFakedEmbed() {
 		EmbeddingModel embeddingModel = mock(EmbeddingModel.class);
 
 		Mockito.doAnswer(invocationOnMock -> List.of(this.embed, this.embed))