fix method tool call throws same method name (spring-projects#2774)

Auto-cherry-pick to 1.0.x
Fixes spring-projects#2771
Signed-off-by: finyu <[email protected]>

Author: finyuq

spring-ai-model/src/main/java/org/springframework/ai/tool/method/MethodToolCallbackProvider.java

@@ -88,6 +88,7 @@ public ToolCallback[] getToolCallbacks() {
 						AopUtils.isAopProxy(toolObject) ? AopUtils.getTargetClass(toolObject) : toolObject.getClass()))
 				.filter(this::isToolAnnotatedMethod)
 				.filter(toolMethod -> !isFunctionalType(toolMethod))
+				.filter(ReflectionUtils.USER_DECLARED_METHODS::matches)
 				.map(toolMethod -> MethodToolCallback.builder()
 					.toolDefinition(ToolDefinitions.from(toolMethod))
 					.toolMetadata(ToolMetadata.from(toolMethod))

spring-ai-model/src/test/java/org/springframework/ai/tool/method/MethodToolCallbackProviderTest.java

@@ -0,0 +1,32 @@
+package org.springframework.ai.tool.method;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.ai.tool.ToolCallback;
+import org.springframework.ai.tool.annotation.Tool;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class MethodToolCallbackProviderTest {
+
+	abstract class TestObjectClass<T> {
+
+		public abstract String test(T input);
+	}
+
+	class TestObjectSuperClass extends TestObjectClass<String> {
+
+		@Tool
+		public String test(String input) {
+			return input;
+		}
+	}
+
+	@Test
+	public void buildToolsWithBridgeMethodReturnOnlyUserDeclaredMethods() {
+		MethodToolCallbackProvider provider = MethodToolCallbackProvider.builder().toolObjects(new TestObjectSuperClass()).build();
+		ToolCallback[] toolCallbacks = provider.getToolCallbacks();
+		assertEquals(1, toolCallbacks.length);
+		assertInstanceOf(MethodToolCallback.class, toolCallbacks[0]);
+	}
+
+}