[SPARK-3902] [SPARK-3590] Stabilize AsynRDDActions and add Java API

This PR adds a Java API for AsyncRDDActions and promotes the API from `Experimental` to stable.

Author: Josh Rosen <joshrosen@apache.org>
Author: Josh Rosen <joshrosen@databricks.com>

Closes #2760 from JoshRosen/async-rdd-actions-in-java and squashes the following commits:

0d45fbc [Josh Rosen] Whitespace fix.
ad3ae53 [Josh Rosen] Merge remote-tracking branch 'origin/master' into async-rdd-actions-in-java
c0153a5 [Josh Rosen] Remove unused variable.
e8e2867 [Josh Rosen] Updates based on Marcelo's review feedback
7a1417f [Josh Rosen] Removed unnecessary java.util import.
6f8f6ac [Josh Rosen] Fix import ordering.
ff28e49 [Josh Rosen] Add MiMa excludes and fix a scalastyle error.
346e46e [Josh Rosen] [SPARK-3902] Stabilize AsyncRDDActions; add Java API.

1 files changed, 33 insertions, 0 deletions

diff --git a/core/src/main/java/org/apache/spark/api/java/JavaFutureAction.java b/core/src/main/java/org/apache/spark/api/java/JavaFutureAction.java
new file mode 100644
index 0000000000..0ad189633e
--- /dev/null
+++ b/core/src/main/java/org/apache/spark/api/java/JavaFutureAction.java
@@ -0,0 +1,33 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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
+ *
+ *    http://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.apache.spark.api.java;
+
+
+import java.util.List;
+import java.util.concurrent.Future;
+
+public interface JavaFutureAction<T> extends Future<T> {
+
+  /**
+   * Returns the job IDs run by the underlying async operation.
+   *
+   * This returns the current snapshot of the job list. Certain operations may run multiple
+   * jobs, so multiple calls to this method may return different lists.
+   */
+  List<Integer> jobIds();
+}