Compile with backward compatibility for Java 8

Author: devopvoid

pom.xml

@@ -77,9 +77,35 @@
 				<plugin>
 					<groupId>org.apache.maven.plugins</groupId>
 					<artifactId>maven-compiler-plugin</artifactId>
-					<version>3.8.1</version>
+					<version>3.10.1</version>
+					<executions>
+						<execution>
+							<id>default-compile</id>
+							<configuration>
+								<release>9</release>
+								<!-- No excludes: compile everything to ensure module-info contains right entries -->
+							</configuration>
+						</execution>
+						<execution>
+							<id>base-compile</id>
+							<goals>
+								<goal>compile</goal>
+							</goals>
+							<configuration>
+								<!-- Recompile everything for target VM except the module-info.java -->
+								<excludes>
+									<exclude>module-info.java</exclude>
+								</excludes>
+							</configuration>
+						</execution>
+					</executions>
+					<!-- Defaults for compile and testCompile -->
 					<configuration>
-						<release>11</release>
+						<release>8</release><!-- compatibility expectations -->
+						<!-- Only required when haven't configured the maven-toolchains-plugin -->
+						<jdkToolchain>
+							<version>9</version>
+						</jdkToolchain>
 						<showDeprecation>true</showDeprecation>
 						<showWarnings>true</showWarnings>
 						<fork>true</fork>

webrtc/src/test/java/dev/onvoid/webrtc/RTCDataChannelTests.java

@@ -18,7 +18,7 @@
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
-import java.util.List;
+import java.util.Arrays;
 
 import org.junit.jupiter.api.Test;
 
@@ -43,8 +43,8 @@ void textMessage() throws Exception {
 
 		Thread.sleep(500);
 
-		assertEquals(List.of("Hello world"), callee.getReceivedTexts());
-		assertEquals(List.of("Hi :)"), caller.getReceivedTexts());
+		assertEquals(Arrays.asList("Hello world"), callee.getReceivedTexts());
+		assertEquals(Arrays.asList("Hi :)"), caller.getReceivedTexts());
 
 		caller.close();
 		callee.close();

webrtc/src/test/java/dev/onvoid/webrtc/media/MediaDevicesTests.java

@@ -19,6 +19,7 @@
 import static org.junit.jupiter.api.Assertions.*;
 
 import dev.onvoid.webrtc.media.audio.AudioDevice;
+import dev.onvoid.webrtc.media.video.VideoCaptureCapability;
 import dev.onvoid.webrtc.media.video.VideoDevice;
 
 import java.util.List;
@@ -42,8 +43,8 @@ void getVideoDevices() {
 
 		assertNotNull(captureDevices);
 
-		for (var device : captureDevices) {
-			var capabilities = MediaDevices.getVideoCaptureCapabilities(device);
+		for (VideoDevice device : captureDevices) {
+			List<VideoCaptureCapability> capabilities = MediaDevices.getVideoCaptureCapabilities(device);
 
 			assertNotNull(capabilities);
 		}