The Java Kuknos Sdk library provides APIs to build transactions and connect to Horizon
In order to use the kuknos java sdk add java-kuknos-sdk-0.16.0
to the application as a module
For some examples on how to use this library, take a look at the Get Started docs in the developers site.
Javadoc is available at https://stellar.github.io/java-stellar-sdk
java-Kuknos-sdk is a modified version of java-stellar-base which is licensed under an Apache-2.0 license. See the LICENSE file for details.