mvn: Update to Java 17 (from 8)

Author: hoijui

modules/parent/pom.xml

@@ -16,8 +16,8 @@ SPDX-License-Identifier: CC0-1.0
 		<project.build.encoding>UTF-8</project.build.encoding>
 		<project.build.sourceEncoding>${project.build.encoding}</project.build.sourceEncoding>
 		<project.build.resourceEncoding>${project.build.encoding}</project.build.resourceEncoding>
-		<java.old.version>8</java.old.version>
-		<java.old.home>${env.JAVA_8_HOME}</java.old.home>
+		<java.old.version>17</java.old.version>
+		<java.old.home>${env.JAVA_17_HOME}</java.old.home>
 		<!-- NOTE This works for reactor/aggregation & child module builds. -->
 		<root.basedir>${project.basedir}/../parent</root.basedir>
 	</properties>
@@ -164,8 +164,7 @@ SPDX-License-Identifier: CC0-1.0
 					<artifactId>maven-compiler-plugin</artifactId>
 					<version>3.13.0</version>
 					<configuration>
-						<source>1.${java.old.version}</source>
-						<target>1.${java.old.version}</target>
+						<release>${java.old.version}</release>
 						<encoding>${project.build.sourceEncoding}</encoding>
 						<showDeprecation>true</showDeprecation>
 						<compilerArgument>-Xlint:unchecked</compilerArgument>
@@ -634,8 +633,7 @@ SPDX-License-Identifier: CC0-1.0
 						<groupId>org.apache.maven.plugins</groupId>
 						<artifactId>maven-compiler-plugin</artifactId>
 						<configuration>
-							<source>1.${java.old.version}</source>
-							<target>1.${java.old.version}</target>
+							<release>${java.old.version}</release>
 							<encoding>${project.build.sourceEncoding}</encoding>
 							<showDeprecation>true</showDeprecation>
 							<compilerArgument>-Xlint:unchecked</compilerArgument>