For Native compilation getTaskRepository for SimpleTaskAC has to be narrowed

it has to be set to the specific SimpleTaskRepository
Removed proxy-target-class flag from demos.

Added comments for which hints can be removed

spring-cloud-task-batch/src/main/java/org/springframework/cloud/task/batch/configuration/TaskBatchRuntimeHints.java

@@ -0,0 +1,48 @@
+/*
+ * Copyright 2022-2022 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.springframework.cloud.task.batch.configuration;
+
+import org.springframework.aop.SpringProxy;
+import org.springframework.aop.framework.Advised;
+import org.springframework.aot.hint.RuntimeHints;
+import org.springframework.aot.hint.RuntimeHintsRegistrar;
+import org.springframework.aot.hint.TypeReference;
+import org.springframework.core.DecoratingProxy;
+
+/**
+ * Native Hints for Spring Cloud Task Batch.
+ *
+ * To be removed when batch adds its hints.
+ *
+ * @author Glenn Renfro
+ * @since 3.0
+ */
+public class TaskBatchRuntimeHints implements RuntimeHintsRegistrar {
+
+	@Override
+	public void registerHints(RuntimeHints hints, ClassLoader classLoader) {
+
+		hints.resources().registerPattern("org/springframework/batch/core/schema-h2.sql");
+
+		hints.proxies()
+				.registerJdkProxy(builder -> builder
+						.proxiedInterfaces(TypeReference.of("org.springframework.batch.core.repository.JobRepository"))
+						.proxiedInterfaces(SpringProxy.class, Advised.class, DecoratingProxy.class));
+
+	}
+
+}

spring-cloud-task-batch/src/main/resources/META-INF/spring/aot.factories

@@ -0,0 +1,2 @@
+org.springframework.aot.hint.RuntimeHintsRegistrar=\
+org.springframework.cloud.task.batch.configuration.TaskBatchRuntimeHints