consider downgrade the target java version to 8 or 11?

[Anilople]

When I run

mvn com.iluwatar.urm:urm-maven-plugin:help -Ddetail=true -Dgoal=map

got

[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  1.041 s
[INFO] Finished at: 2023-09-04T22:28:27+08:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal com.iluwatar.urm:urm-maven-plugin:2.1.1:help (default-cli) on project apollo-openapi: Execution default-cli of goal
 com.iluwatar.urm:urm-maven-plugin:2.1.1:help failed: Unable to load the mojo 'help' in the plugin 'com.iluwatar.urm:urm-maven-plugin:2.1.1' due t
o an API incompatibility: org.codehaus.plexus.component.repository.exception.ComponentLookupException: com/iluwatar/urm/urm_maven_plugin/HelpMojo 
has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 55.0

environment:

Apache Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f)
Maven home: C:\Program Files\Apache\apache-maven-3.6.3\bin\..
Java version: 11.0.19, vendor: Eclipse Adoptium, runtime: C:\Program Files\Eclipse Adoptium\jdk-11.0.19.7-hotspot
Default locale: zh_CN, platform encoding: GBK
OS name: "windows 11", version: "10.0", arch: "amd64", family: "windows"

---

In

uml-reverse-mapper/pom.xml

Line 147 in bf7a340

<target>17</target>

The target compiled .class's java version is 17, could downgrade it to 8 or 11? Because many projects don't use java 17 yet, that will cause this plugin cannot work on those project.

[Anilople]

Only this method use java 17's feature

uml-reverse-mapper/urm-maven/src/test/java/com/iluwatar/urm/DomainMapperMojoTest.java

Lines 65 to 66 in bf7a340

	assertEquals(1, strings.stream().filter(s -> s.contains("package com.iluwatar.urm.testdomain")).toList().size());
	assertEquals(2, strings.stream().filter(s -> s.contains("TestPojo")).toList().size());

When I delete it, this project can compile by jdk 8.

[iluwatar]

The only way is forward. I'd rather fix this by resolving the issues with newer Java.