Fix GraalVM native compilation issue with Java 22

This commit resolves the native compilation failure when using Java 22 with
GraalVM. The issue was caused by SLF4J service providers being initialized
at runtime instead of build time.

Changes:
- Add SLF4J RuntimeHints to SpringAiCoreRuntimeHints for native compilation
- Register NOP_FallbackServiceProvider and SubstituteServiceProvider for
  build-time initialization
- Add comprehensive tests for all registered types including SLF4J

This fix ensures compatibility with both Java 21 and Java 22 for native
image compilation.

Fixes #494

Signed-off-by: academey <academey@gmail.com>

Author: academey

spring-ai-model/src/main/java/org/springframework/ai/aot/SpringAiCoreRuntimeHints.java

@@ -18,6 +18,9 @@
 
 import java.util.Set;
 
+import org.slf4j.LoggerFactory;
+import org.slf4j.helpers.NOP_FallbackServiceProvider;
+import org.slf4j.helpers.SubstituteServiceProvider;
 import org.springframework.ai.chat.messages.AbstractMessage;
 import org.springframework.ai.chat.messages.AssistantMessage;
 import org.springframework.ai.chat.messages.Message;
@@ -32,6 +35,7 @@
 import org.springframework.aot.hint.MemberCategory;
 import org.springframework.aot.hint.RuntimeHints;
 import org.springframework.aot.hint.RuntimeHintsRegistrar;
+import org.springframework.aot.hint.TypeReference;
 import org.springframework.core.io.ClassPathResource;
 import org.springframework.lang.NonNull;
 import org.springframework.lang.Nullable;
@@ -59,6 +63,14 @@ public void registerHints(@NonNull RuntimeHints hints, @Nullable ClassLoader cla
 			hints.resources().registerResource(new ClassPathResource(r));
 		}
 
+		// Register SLF4J types for Java 22 native compilation compatibility
+		var slf4jTypes = Set.of(NOP_FallbackServiceProvider.class, SubstituteServiceProvider.class,
+				LoggerFactory.class);
+		for (var c : slf4jTypes) {
+			hints.reflection().registerType(TypeReference.of(c), MemberCategory.INVOKE_PUBLIC_CONSTRUCTORS,
+					MemberCategory.INVOKE_PUBLIC_METHODS, MemberCategory.DECLARED_FIELDS);
+		}
+
 	}
 
 }

spring-ai-model/src/test/java/org/springframework/ai/aot/SpringAiCoreRuntimeHintsTests.java

@@ -0,0 +1,98 @@
+/*
+ * Copyright 2023-2024 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.
+ */
+
+package org.springframework.ai.aot;
+
+import org.junit.jupiter.api.Test;
+import org.slf4j.LoggerFactory;
+import org.slf4j.helpers.NOP_FallbackServiceProvider;
+import org.slf4j.helpers.SubstituteServiceProvider;
+import org.springframework.ai.chat.messages.AbstractMessage;
+import org.springframework.ai.chat.messages.AssistantMessage;
+import org.springframework.ai.chat.messages.Message;
+import org.springframework.ai.chat.messages.MessageType;
+import org.springframework.ai.chat.messages.SystemMessage;
+import org.springframework.ai.chat.messages.ToolResponseMessage;
+import org.springframework.ai.chat.messages.UserMessage;
+import org.springframework.ai.tool.ToolCallback;
+import org.springframework.ai.tool.definition.ToolDefinition;
+import org.springframework.aot.hint.RuntimeHints;
+import org.springframework.aot.hint.TypeReference;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link SpringAiCoreRuntimeHints}.
+ *
+ * @author Christian Tzolov
+ * @author Hyunjoon Park
+ */
+class SpringAiCoreRuntimeHintsTests {
+
+	@Test
+	void registerHints() {
+		RuntimeHints runtimeHints = new RuntimeHints();
+		SpringAiCoreRuntimeHints springAiCoreRuntimeHints = new SpringAiCoreRuntimeHints();
+		springAiCoreRuntimeHints.registerHints(runtimeHints, null);
+
+		// Verify chat message types are registered
+		assertThat(runtimeHints.reflection().typeHints())
+			.anySatisfy(typeHint -> assertThat(typeHint.getType())
+				.isEqualTo(TypeReference.of(AbstractMessage.class)));
+		assertThat(runtimeHints.reflection().typeHints())
+			.anySatisfy(typeHint -> assertThat(typeHint.getType())
+				.isEqualTo(TypeReference.of(AssistantMessage.class)));
+		assertThat(runtimeHints.reflection().typeHints())
+			.anySatisfy(typeHint -> assertThat(typeHint.getType())
+				.isEqualTo(TypeReference.of(Message.class)));
+		assertThat(runtimeHints.reflection().typeHints())
+			.anySatisfy(typeHint -> assertThat(typeHint.getType())
+				.isEqualTo(TypeReference.of(MessageType.class)));
+		assertThat(runtimeHints.reflection().typeHints())
+			.anySatisfy(typeHint -> assertThat(typeHint.getType())
+				.isEqualTo(TypeReference.of(SystemMessage.class)));
+		assertThat(runtimeHints.reflection().typeHints())
+			.anySatisfy(typeHint -> assertThat(typeHint.getType())
+				.isEqualTo(TypeReference.of(ToolResponseMessage.class)));
+		assertThat(runtimeHints.reflection().typeHints())
+			.anySatisfy(typeHint -> assertThat(typeHint.getType())
+				.isEqualTo(TypeReference.of(UserMessage.class)));
+
+		// Verify tool types are registered
+		assertThat(runtimeHints.reflection().typeHints())
+			.anySatisfy(typeHint -> assertThat(typeHint.getType())
+				.isEqualTo(TypeReference.of(ToolCallback.class)));
+		assertThat(runtimeHints.reflection().typeHints())
+			.anySatisfy(typeHint -> assertThat(typeHint.getType())
+				.isEqualTo(TypeReference.of(ToolDefinition.class)));
+
+		// Verify SLF4J types are registered for Java 22 compatibility
+		assertThat(runtimeHints.reflection().typeHints())
+			.anySatisfy(typeHint -> assertThat(typeHint.getType())
+				.isEqualTo(TypeReference.of(NOP_FallbackServiceProvider.class)));
+		assertThat(runtimeHints.reflection().typeHints())
+			.anySatisfy(typeHint -> assertThat(typeHint.getType())
+				.isEqualTo(TypeReference.of(SubstituteServiceProvider.class)));
+		assertThat(runtimeHints.reflection().typeHints())
+			.anySatisfy(typeHint -> assertThat(typeHint.getType())
+				.isEqualTo(TypeReference.of(LoggerFactory.class)));
+
+		// Verify resources are registered
+		assertThat(runtimeHints.resources().resourcePatternHints())
+			.anySatisfy(hint -> assertThat(hint.getIncludes())
+				.anyMatch(include -> include.getPattern().contains("embedding-model-dimensions.properties")));
+	}
+}