Testing build on Java 8 release

Author: ctmay4

pom.xml

@@ -37,7 +37,7 @@
 
     <properties>
         <!-- Java / encoding -->
-        <maven.compiler.release>21</maven.compiler.release>
+        <maven.compiler.release>8</maven.compiler.release>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 
         <!-- Dependency versions -->