Update to JDK 17

Author: keilw

pom.xml

@@ -602,7 +602,7 @@
 				<plugin>
 					<groupId>org.asciidoctor</groupId>
 					<artifactId>asciidoctor-maven-plugin</artifactId>
-					<version>1.5.2</version>
+					<version>2.2.1</version>
 				</plugin>
 				<plugin>
 					<groupId>org.jacoco</groupId>
@@ -692,7 +692,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-enforcer-plugin</artifactId>
-				<version>1.3.1</version>
+				<version>3.0.0</version>
 				<executions>
 					<execution>
 						<id>enforce-versions</id>
@@ -749,7 +749,7 @@
 					<dependency>
 						<groupId>org.asciidoctor</groupId>
 						<artifactId>asciidoctorj-pdf</artifactId>
-						<version>1.5.0-alpha.6</version>
+						<version>1.6.0</version>
 					</dependency>
 				</dependencies>
 				<configuration>