Merge pull request #487 from albertotn/486

test for java 17

Author: jmrozanec

pom.xml

@@ -174,10 +174,10 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.1</version>
+                <version>3.8.1</version>
                 <configuration>
-                    <source>16</source>
-                    <target>16</target>
+                    <source>17</source>
+                    <target>17</target>
                     <compilerArgs>
                         <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED</arg>
                         <arg>-J--add-opens=jdk.compiler/com.sun.tools.javac.comp=ALL-UNNAMED</arg>