Add AOT-generated classes to classpath of the compiler

See gh-32304

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

@@ -137,10 +137,11 @@ public abstract class AbstractAotMojo extends AbstractDependencyFilterMojo {
 		}
 	}
 
-	protected final URL[] getClassPath(File classesDirectory, ArtifactsFilter... artifactFilters)
-			throws MojoExecutionException {
+	protected final URL[] getClassPath(File classesDirectory, File generatedClassesDirectory,
+			ArtifactsFilter... artifactFilters) throws MojoExecutionException {
 		List<URL> urls = new ArrayList<>();
 		urls.add(toURL(classesDirectory));
+		urls.add(toURL(generatedClassesDirectory));
 		urls.addAll(getDependencyURLs(artifactFilters));
 		return urls.toArray(URL[]::new);
 	}

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

@@ -107,7 +107,7 @@ public class ProcessAotMojo extends AbstractAotMojo {
 	}
 
 	protected URL[] getClassPath() throws Exception {
-		return getClassPath(this.classesDirectory, new ExcludeTestScopeArtifactFilter());
+		return getClassPath(this.classesDirectory, this.generatedClasses, new ExcludeTestScopeArtifactFilter());
 	}
 
 }

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

@@ -133,7 +133,7 @@ public class ProcessTestAotMojo extends AbstractAotMojo {
 	}
 
 	protected URL[] getClassPath(boolean includeJUnitPlatformLauncher) throws Exception {
-		URL[] classPath = getClassPath(this.classesDirectory);
+		URL[] classPath = getClassPath(this.classesDirectory, this.generatedClasses);
 		if (!includeJUnitPlatformLauncher || this.project.getArtifactMap()
 				.containsKey(JUNIT_PLATFORM_GROUP_ID + ":" + JUNIT_PLATFORM_LAUNCHER_ARTIFACT_ID)) {
 			return classPath;