From db8676cb6dbc2e5177edcbaf13de1502326250a0 Mon Sep 17 00:00:00 2001
From: Andrea Cavalli <andrea@warp.ovh>
Date: Wed, 30 Aug 2023 11:57:13 +0200
Subject: [PATCH] Fix java 8 build

---
 .../java/it/tdlight/client/SimpleTelegramClient.java   |  3 ++-
 .../src/main/java/it/tdlight/util/FutureSupport.java   | 10 ++++++++++
 .../src/main/java11/it/tdlight/util/FutureSupport.java | 10 ++++++++++
 3 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 tdlight-java/src/main/java/it/tdlight/util/FutureSupport.java
 create mode 100644 tdlight-java/src/main/java11/it/tdlight/util/FutureSupport.java

diff --git a/tdlight-java/src/main/java/it/tdlight/client/SimpleTelegramClient.java b/tdlight-java/src/main/java/it/tdlight/client/SimpleTelegramClient.java
index 3e64a6c11..1a3caf3d8 100644
--- a/tdlight-java/src/main/java/it/tdlight/client/SimpleTelegramClient.java
+++ b/tdlight-java/src/main/java/it/tdlight/client/SimpleTelegramClient.java
@@ -8,6 +8,7 @@
 import it.tdlight.TelegramClient;
 import it.tdlight.jni.TdApi.Message;
 import it.tdlight.jni.TdApi.Update;
+import it.tdlight.util.FutureSupport;
 import it.tdlight.util.UnsupportedNativeLibraryException;
 import it.tdlight.jni.TdApi;
 import it.tdlight.jni.TdApi.ChatListArchive;
@@ -359,7 +360,7 @@ public void waitForExit() throws InterruptedException {
 	 * Wait until TDLight is closed
 	 */
 	public CompletableFuture<Void> waitForExitAsync() {
-		return closed.copy();
+		return FutureSupport.copy(closed);
 	}
 
 	private void onCloseUpdate() {
diff --git a/tdlight-java/src/main/java/it/tdlight/util/FutureSupport.java b/tdlight-java/src/main/java/it/tdlight/util/FutureSupport.java
new file mode 100644
index 000000000..4fff8e57f
--- /dev/null
+++ b/tdlight-java/src/main/java/it/tdlight/util/FutureSupport.java
@@ -0,0 +1,10 @@
+package it.tdlight.util;
+
+import java.util.concurrent.CompletableFuture;
+
+public class FutureSupport {
+
+	public static <T> CompletableFuture<T> copy(CompletableFuture<T> future) {
+		return CompletableFuture.completedFuture(true).thenCompose(ignored -> future);
+	}
+}
diff --git a/tdlight-java/src/main/java11/it/tdlight/util/FutureSupport.java b/tdlight-java/src/main/java11/it/tdlight/util/FutureSupport.java
new file mode 100644
index 000000000..5b42d9636
--- /dev/null
+++ b/tdlight-java/src/main/java11/it/tdlight/util/FutureSupport.java
@@ -0,0 +1,10 @@
+package it.tdlight.util;
+
+import java.util.concurrent.CompletableFuture;
+
+public class FutureSupport {
+
+	public static <T> CompletableFuture<T> copy(CompletableFuture<T> future) {
+		return future.copy();
+	}
+}