Add JDK 21 support (#310)

vharseko

23.38.2023 cb69ead94eadce90fd0616b5af263603feee78ba

 pom.xml

@@ -353,7 +353,7 @@
                    <inherited>true</inherited>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.10.1</version>
                    <version>3.11.0</version>
                    <configuration>
                        <fork>true</fork>
                        <compilerArgs>
@@ -365,7 +365,7 @@
            <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-assembly-plugin</artifactId>
                    <version>3.2.0</version>
                    <version>3.6.0</version>
                </plugin>
                
                <plugin>
@@ -446,7 +446,7 @@
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-surefire-plugin</artifactId>
                    <version>3.0.0-M4</version> <!-- M6 DecodeException but got java.nio.BufferOverflowException -->
                    <version>3.1.2</version> <!-- M6 DecodeException but got java.nio.BufferOverflowException -->
                    <configuration>
                  <properties>
                            <property>