Set JAVA_HOME envorinment variable to Java 1.8 JDK.

gradlew clean
gradlew -Pversion=x.y.z publish

• Go to https://oss.sonatype.org/#stagingRepositories
• Delete maven-metadata.xml.sha256 before closing stagging repo.
• Delete maven-metadata.xml.sha512 before closing stagging repo.
• Leave maven-metadata.xml.md5 before closing stagging repo.
• Leave maven-metadata.xml.sha1 before closing stagging repo.
• Uncheck „automatically drop“ within release action.

• http://maven.apache.org/repository/guide-central-repository-upload.html
• https://central.sonatype.org/pages/ossrh-guide.html
• https://central.sonatype.org/pages/releasing-the-deployment.html
• https://oss.sonatype.org/