Fixed Javadoc build which failed after modularization

Author: kjetilkl

.github/workflows/release.yml

@@ -26,7 +26,7 @@ jobs:
 
       - name: Publish package
         run: |
-          mvn javadoc:javadoc
+          mvn package javadoc:javadoc
           mvn --batch-mode deploy
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

pom.xml

@@ -190,6 +190,7 @@
                     </execution>
                 </executions>
             </plugin>
+
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-source-plugin</artifactId>
@@ -203,6 +204,19 @@
                     </execution>
                 </executions>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-javadoc-plugin</artifactId>
+                <version>3.6.2</version>
+                <executions>
+                    <execution>
+                        <id>attach-javadocs</id>
+                        <goals>
+                            <goal>jar</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
         </plugins>
     </build>