gradle: desugar retrofuture and remove old deps

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

4 files changed, 10 insertions, 16 deletions

diff --git a/tunnel/src/main/java/com/wireguard/config/Attribute.java b/tunnel/src/main/java/com/wireguard/config/Attribute.java
index 659f7cf4..447d7216 100644
--- a/tunnel/src/main/java/com/wireguard/config/Attribute.java
+++ b/tunnel/src/main/java/com/wireguard/config/Attribute.java
@@ -8,11 +8,10 @@ package com.wireguard.config;
 import com.wireguard.util.NonNullForAll;
 
 import java.util.Iterator;
+import java.util.Optional;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import java9.util.Optional;
-
 @NonNullForAll
 public final class Attribute {
     private static final Pattern LINE_PATTERN = Pattern.compile("(\\w+)\\s*=\\s*([^\\s#][^#]*)");
diff --git a/tunnel/src/main/java/com/wireguard/config/InetEndpoint.java b/tunnel/src/main/java/com/wireguard/config/InetEndpoint.java
index 6eff4a1b..87a4b9d0 100644
--- a/tunnel/src/main/java/com/wireguard/config/InetEndpoint.java
+++ b/tunnel/src/main/java/com/wireguard/config/InetEndpoint.java
@@ -7,18 +7,17 @@ package com.wireguard.config;
 
 import com.wireguard.util.NonNullForAll;
 
-import org.threeten.bp.Duration;
-import org.threeten.bp.Instant;
-
 import java.net.Inet4Address;
 import java.net.InetAddress;
 import java.net.URI;
 import java.net.URISyntaxException;
 import java.net.UnknownHostException;
+import java.time.Duration;
+import java.time.Instant;
+import java.util.Optional;
 import java.util.regex.Pattern;
 
 import androidx.annotation.Nullable;
-import java9.util.Optional;
 
 
 /**
diff --git a/tunnel/src/main/java/com/wireguard/config/Interface.java b/tunnel/src/main/java/com/wireguard/config/Interface.java
index c49357f7..01bb3699 100644
--- a/tunnel/src/main/java/com/wireguard/config/Interface.java
+++ b/tunnel/src/main/java/com/wireguard/config/Interface.java
@@ -20,13 +20,11 @@ import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Locale;
 import java.util.Objects;
+import java.util.Optional;
 import java.util.Set;
+import java.util.stream.Collectors;
 
 import androidx.annotation.Nullable;
-import java9.util.Lists;
-import java9.util.Optional;
-import java9.util.stream.Collectors;
-import java9.util.stream.StreamSupport;
 
 /**
  * Represents the configuration for a WireGuard interface (an [Interface] block). Interfaces must
@@ -223,9 +221,7 @@ public final class Interface {
         if (!addresses.isEmpty())
             sb.append("Address = ").append(Attribute.join(addresses)).append('\n');
         if (!dnsServers.isEmpty()) {
-            final List<String> dnsServerStrings = StreamSupport.stream(dnsServers)
-                    .map(InetAddress::getHostAddress)
-                    .collect(Collectors.toUnmodifiableList());
+            final List<String> dnsServerStrings = dnsServers.stream().map(InetAddress::getHostAddress).collect(Collectors.toList());
             sb.append("DNS = ").append(Attribute.join(dnsServerStrings)).append('\n');
         }
         if (!excludedApplications.isEmpty())
@@ -339,11 +335,11 @@ public final class Interface {
         }
 
         public Builder parseExcludedApplications(final CharSequence apps) {
-            return excludeApplications(Lists.of(Attribute.split(apps)));
+            return excludeApplications(List.of(Attribute.split(apps)));
         }
 
         public Builder parseIncludedApplications(final CharSequence apps) {
-            return includeApplications(Lists.of(Attribute.split(apps)));
+            return includeApplications(List.of(Attribute.split(apps)));
         }
 
         public Builder parseListenPort(final String listenPort) throws BadConfigException {
diff --git a/tunnel/src/main/java/com/wireguard/config/Peer.java b/tunnel/src/main/java/com/wireguard/config/Peer.java
index 984dbe9c..b9824bff 100644
--- a/tunnel/src/main/java/com/wireguard/config/Peer.java
+++ b/tunnel/src/main/java/com/wireguard/config/Peer.java
@@ -17,10 +17,10 @@ import java.util.Collections;
 import java.util.LinkedHashSet;
 import java.util.Locale;
 import java.util.Objects;
+import java.util.Optional;
 import java.util.Set;
 
 import androidx.annotation.Nullable;
-import java9.util.Optional;
 
 /**
  * Represents the configuration for a WireGuard peer (a [Peer] block). Peers must have a public key,