Add workaround for scaladoc generation in Scala 3 & additional update after revert

Author: lostiniceland

docs/plugins.md

@@ -130,7 +130,7 @@ This Mill library provides a Mill module that can be used to generate code from
 ```scala
 //| mill-version: 1.0.6
 //| mvnDeps:
-//|   - org.openapitools:openapi-generator-mill-plugin:7.19.0 # 1.
+//|   - org.openapitools:openapi-generator-mill-plugin:7.20.0 # 1.
 
 import mill.*
 

modules/openapi-generator-mill-plugin/example/mill-build/version.properties

@@ -1,3 +1,3 @@
 # RELEASE_VERSION
-openApiGeneratorVersion=7.19.0
+openApiGeneratorVersion=7.20.0-SNAPSHOT
 # /RELEASE_VERSION

modules/openapi-generator-mill-plugin/pom.xml

@@ -4,7 +4,7 @@
         <groupId>org.openapitools</groupId>
         <artifactId>openapi-generator-project</artifactId>
         <!-- RELEASE_VERSION -->
-        <version>7.19.0</version>
+        <version>7.20.0-SNAPSHOT</version>
         <!-- /RELEASE_VERSION -->
         <relativePath>../../pom.xml</relativePath>
     </parent>
@@ -137,8 +137,29 @@
                         <goals>
                             <goal>compile</goal>
                             <goal>testCompile</goal>
+                        </goals>
+                    </execution>
+                    <execution>
+                        <!-- see https://github.com/davidB/scala-maven-plugin/issues/604 why a workaround is needed -->
+                        <id>attach-javadocs</id>
+                        <goals>
                             <goal>doc-jar</goal>
                         </goals>
+                        <configuration>
+                            <scaladocClassName>dotty.tools.scaladoc.Main</scaladocClassName>
+                            <sourceDir>${project.build.outputDirectory}</sourceDir>
+                            <args>-nobootcp</args>
+                            <includes>
+                                <include>**/*.tasty</include>
+                            </includes>
+                            <dependencies>
+                                <dependency>
+                                    <groupId>org.scala-lang</groupId>
+                                    <artifactId>scaladoc_3</artifactId>
+                                    <version>3.7.4</version>
+                                </dependency>
+                            </dependencies>
+                        </configuration>
                     </execution>
                 </executions>
             </plugin>