Also try using Sonatype deploy plugin

Author: cowtowncoder

pom.xml

@@ -71,6 +71,26 @@ com.fasterxml.classmate.*;version=${project.version}
     </dependencies>
 
     <build>
+          <!-- 19-Oct-2019, tatu: Copied from
+
+           https://github.com/stephenc/git-timestamp-maven-plugin/blob/master/pom.xml#L327-L337
+
+               to simplify releases. I hope.
+            -->
+          <plugin>
+            <groupId>org.sonatype.plugins</groupId>
+            <artifactId>nexus-staging-maven-plugin</artifactId>
+            <version>1.6.6</version>
+            <extensions>true</extensions>
+            <configuration>
+              <serverId>sonatype-nexus-staging</serverId>
+              <nexusUrl>https://oss.sonatype.org/</nexusUrl>
+<!--
+              <stagingProfileId>b34f19b9cc6224</stagingProfileId>
+-->
+            </configuration>
+          </plugin>
+
         <plugins>
             <!-- As per [#38] add `Automatic-Module-Name` -->
             <plugin>