Make all AOT-generated resources available to native-compile

Fixes gh-32841

spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/intTest/java/org/springframework/boot/maven/AotTests.java

@@ -45,16 +45,17 @@ public class AotTests {
 	}
 
 	@TestTemplate
-	void whenAotRunsResourcesAreGenerated(MavenBuild mavenBuild) {
+	void whenAotRunsResourcesAreGeneratedAndCopiedToTargetClasses(MavenBuild mavenBuild) {
-		mavenBuild.project("aot").goals("package").execute((project) -> {
+		mavenBuild.project("aot-resource-generation").goals("package").execute((project) -> {
-			Path aotDirectory = project.toPath().resolve("target/spring-aot/main");
+			Path targetClasses = project.toPath().resolve("target/classes");
-			assertThat(collectRelativePaths(aotDirectory.resolve("resources"))).contains(
+			assertThat(collectRelativePaths(targetClasses)).contains(
-					Path.of("META-INF", "native-image", "org.springframework.boot.maven.it", "aot",
+					Path.of("META-INF", "native-image", "org.springframework.boot.maven.it", "aot-resource-generation",
 							"reflect-config.json"),
-					Path.of("META-INF", "native-image", "org.springframework.boot.maven.it", "aot",
+					Path.of("META-INF", "native-image", "org.springframework.boot.maven.it", "aot-resource-generation",
 							"resource-config.json"),
-					Path.of("META-INF", "native-image", "org.springframework.boot.maven.it", "aot",
+					Path.of("META-INF", "native-image", "org.springframework.boot.maven.it", "aot-resource-generation",
-							"native-image.properties"));
+							"native-image.properties"),
+					Path.of("generated-resource"), Path.of("nested/generated-resource"));
 		});
 	}
 

spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/intTest/projects/aot-resource-generation/pom.xml

@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<groupId>org.springframework.boot.maven.it</groupId>
+	<artifactId>aot-resource-generation</artifactId>
+	<version>0.0.1.BUILD-SNAPSHOT</version>
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<maven.compiler.source>@java.version@</maven.compiler.source>
+		<maven.compiler.target>@java.version@</maven.compiler.target>
+	</properties>
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>@project.groupId@</groupId>
+				<artifactId>@project.artifactId@</artifactId>
+				<version>@project.version@</version>
+				<executions>
+					<execution>
+						<goals>
+							<goal>process-aot</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+		</plugins>
+	</build>
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot</artifactId>
+			<version>@project.version@</version>
+		</dependency>
+		<dependency>
+			<groupId>jakarta.servlet</groupId>
+			<artifactId>jakarta.servlet-api</artifactId>
+			<version>@jakarta-servlet.version@</version>
+			<scope>provided</scope>
+		</dependency>
+	</dependencies>
+</project>

spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/intTest/projects/aot-resource-generation/src/main/java/org/test/ResourceRegisteringAotProcessor.java

@@ -0,0 +1,41 @@
+/*
+ * Copyright 2012-2022 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.test;
+
+import org.springframework.aot.generate.GenerationContext;
+import org.springframework.beans.factory.aot.BeanFactoryInitializationAotContribution;
+import org.springframework.beans.factory.aot.BeanFactoryInitializationAotProcessor;
+import org.springframework.beans.factory.aot.BeanFactoryInitializationCode;
+import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
+
+class ResourceRegisteringAotProcessor implements BeanFactoryInitializationAotProcessor {
+
+	@Override
+	public BeanFactoryInitializationAotContribution processAheadOfTime(ConfigurableListableBeanFactory beanFactory) {
+		return new BeanFactoryInitializationAotContribution() {
+
+			@Override
+			public void applyTo(GenerationContext generationContext,
+					BeanFactoryInitializationCode beanFactoryInitializationCode) {
+				generationContext.getGeneratedFiles().addResourceFile("generated-resource", "content");
+				generationContext.getGeneratedFiles().addResourceFile("nested/generated-resource", "nested content");
+			}
+
+		};
+	}
+
+}

spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/intTest/projects/aot-resource-generation/src/main/java/org/test/SampleApplication.java

@@ -0,0 +1,29 @@
+/*
+ * Copyright 2012-2022 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.test;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration(proxyBeanMethods = false)
+public class SampleApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(SampleApplication.class, args);
+	}
+
+}

spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/intTest/projects/aot-resource-generation/src/main/resources/META-INF/spring/aot.factories

@@ -0,0 +1,2 @@
+org.springframework.beans.factory.aot.BeanFactoryInitializationAotProcessor=\
+org.test.ResourceRegisteringAotProcessor

spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/main/java/org/springframework/boot/maven/ProcessAotMojo.java

@@ -93,8 +93,7 @@ public class ProcessAotMojo extends AbstractAotMojo {
 		URL[] classPath = getClassPath();
 		generateAotAssets(classPath, AOT_PROCESSOR_CLASS_NAME, getAotArguments(applicationClass));
 		compileSourceFiles(classPath, this.generatedSources, this.classesDirectory);
-		copyAll(this.generatedResources.toPath().resolve("META-INF/native-image"),
+		copyAll(this.generatedResources.toPath(), this.classesDirectory.toPath());
-				this.classesDirectory.toPath().resolve("META-INF/native-image"));
 		copyAll(this.generatedClasses.toPath(), this.classesDirectory.toPath());
 	}