Simply push to master, and [the Travis CI build](https://travis-ci.org/ethereum/ethereumj) will take care of the rest. To publish manually instead, just run `../gradlew publish`. Where the artifacts are published depends on the value of the `version` property in the [root build.gradle file](../build.gradle). Snapshots (version values ending in `-SNAPSHOT`) will be published to [oss.jfrog.org](https://oss.jfrog.org/libs-snapshot/org/ethereum/), while releases will be published to [Bintray](https://bintray.com/ethereum/maven/org.ethereum/) (and subsequently to [JCenter](http://jcenter.bintray.com/org/ethereum/)). **You must be a member of the [ethereum Bintray organization](https://bintray.com/ethereum) and you must supply `bintrayUser` and `bintrayKey` properties to the Gradle build in order to authenticate against these repositories**. Configure these properties in your `$HOME/.gradle/gradle.properties` for greatest convenience and security.