Support for the Jakarta EE 11 M1 release

[arjantijms]

Update dependencies to their M1 versions where applicable, and update code to support this.

Set release target to JDK 17, and removed some resulting warnings.

[arjantijms]

PR will be updated with expressly M1 once it's available.

[pzygielo]

https://maven.apache.org/plugins/maven-compiler-plugin/compile-mojo.html#release - it's recognized since plugin 3.6, but apparently no explicit version of m-compiler-p is specified and it depends on maven used and falls-back to 3.1 here.

[arjantijms]

https://maven.apache.org/plugins/maven-compiler-plugin/compile-mojo.html#release - it's recognized since plugin 3.6, but apparently no explicit version of m-compiler-p is specified and it depends on maven used and falls-back to 3.1 here.

I thought, but clearly wrongly, that the compiler version came from the EE4J pom. But seems I was mistaken.

[arjantijms]

https://maven.apache.org/plugins/maven-compiler-plugin/compile-mojo.html#release - it's recognized since plugin 3.6, but apparently no explicit version of m-compiler-p is specified and it depends on maven used and falls-back to 3.1 here.

I also thought this would set the correct version of the compiler of Maven 3.6.0, but also seemingly it does not actually do that. Probably need to upgrade the minimal Maven version a bit to that which has Maven compiler 3.6 at least.

            <!-- Sets minimal Maven version to 3.6.0 -->
            <plugin>
                <artifactId>maven-enforcer-plugin</artifactId>
                <executions>
                    <execution>
                        <id>enforce-maven</id>
                        <goals>
                            <goal>enforce</goal>
                        </goals>
                        <configuration>
                            <rules>
                                <requireMavenVersion>
                                    <version>3.6.0</version>
                                </requireMavenVersion>
                            </rules>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

[pzygielo]

I also thought this would set the correct version of the compiler of Maven 3.6.0, but also seemingly it does not actually do that. Probably need to upgrade the minimal Maven version a bit to that which has Maven compiler 3.6 at least.

That would be maven 3.9.0, as all previous have m-c-p at 3.1.

Note: the current GH runner ubuntu-latest provides maven 3.8.8 only.

[arjantijms]

Note: the current GH runner ubuntu-latest provides maven 3.8.8 only.

Thanks! So for now that is not really an option. Okay, let's think about setting minimum maven to 3.8.8 then, and additionally stil setting the compiler to the latest version.